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Non Life Sciences => Chemistry => Topic started by: scotty234 on 09/05/2005 21:38:35

Title: Practical Jokes
Post by: scotty234 on 09/05/2005 21:38:35
1
Title: Re: Practical Jokes
Post by: realmswalker on 10/05/2005 02:42:46
put acid of some sort in your teachers cofee...
Title: Re: Practical Jokes
Post by: Ians Daddy on 10/05/2005 22:41:50
You could line the bottom of their drinking glass with pure sodium and set it next to a water pitcher....and wait for the fun to ensue!! It always gets a good laugh.
Title: Re: Practical Jokes
Post by: neilep on 10/05/2005 22:44:13
how about laxatives...that will set off a few chemical reactions !

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Title: Re: Practical Jokes
Post by: DoctorBeaver on 17/05/2005 12:14:49
Heh, the sodiun 1 is a hoot!

It wasn't me - a big boy did it & ran away
Title: Re: Practical Jokes
Post by: neilep on 17/05/2005 12:49:47
What does the sodium one do ?

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Title: Re: Practical Jokes
Post by: Ians Daddy on 18/05/2005 05:09:01
KABOOM!
Title: Re: Practical Jokes
Post by: DoctorBeaver on 18/05/2005 12:56:27
I remember being somewhat naughty at school & pinching a matchbox-sized piece of sodium from the chem lab. We had our own swimming pool at school & I chucked the sodium in during a gala. Although my fellow pupils were highly amused the teachers were none too pleased (to put it mildly). Oh I wish the cane had already been banned by that time!
Title: Re: Practical Jokes
Post by: rosy on 18/05/2005 13:21:34
The actual chemistry goes about like this:

Sodium reacts with water to form sodium hydroxide and hydrogen.
The reaction produces heat, causing the hydrogen to ignite and burn in the oxygen from the air.
Na (s) + H2O (l) --> Na+ (aq) + OH- (aq) + 1/2 H2 (g)
then
2 H2 (g) + O2 (g) --> 2 H2O
So you get a load of heat/light.

quote:
a matchbox-sized piece of sodium

That's quite a lump of sodium.
Title: Re: Practical Jokes
Post by: Deanwinfield on 18/05/2005 21:27:11
thats a HUGE lump! How big was this kaboom?! Would have been better if it was potassium. Nothing more though, we dnt want people getting injured!

"There is no gravity, the earth just sucks"
Title: Re: Practical Jokes
Post by: DoctorBeaver on 18/05/2005 21:30:31
The kaboom was enormous & a fair few people got more than just a little wet.

It wasn't me - a big boy did it & ran away
Title: Re: Practical Jokes
Post by: PhirePhly on 20/05/2005 04:04:23
quote:
Originally posted by Ruzz5000

Does anyone know of any practical joke using easy to obtain elements, i have seen a couple but i couldn't remeber them
with thanks Russ



I remember one involving different states of matter and food.

Fill a balloon with grape juice and freeze it (preferably so that it stays round, like floating in a shallow bowl of water in the freezer).

Get a bowl big enough to just swallow the grape juice ball and make a big batch of gelatin (lime green or something translucent).  Just before it's completely firm, push the grape juice ice ball down into it so that it's completely surrounded by gelatin.

When you tip the gelatin out onto a plate, it will appear to have a second, purple bit of gelatin inside, but when you cut into it, the grape juice just gushes out.

Maybe not exploding sodium, but certainly something to get your guest's attention at a dinner party.

Thanks,
 
L. Lisov
Title: Re: Practical Jokes
Post by: neilep on 20/05/2005 08:50:59
So how does one procure a lump of sodium ?....do you go to Sodium Blocks R Us ?...presumably I just can't waddle into my local chemist/pharmacist/drugstore/chemical dealer with a cheeky grin and ask for a chunk of sodium eh ?


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Title: Re: Practical Jokes
Post by: simeonie on 20/05/2005 18:00:18
frantium is really explosive in water isn't it? or is it called francium.... cnt remember!

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Title: Re: Practical Jokes
Post by: rosy on 20/05/2005 18:05:59
http://www.thenakedscientists.com/forum/topic.asp?TOPIC_ID=1014

It's Francium. There was a discussion of this a little while ago, and I think the conclusion was that Francium, if you can get hold of it (which is tricky as it's radioactively unstable), would react pretty vigorously with water but possibly less so than Caesium (immediately above Francium in group I) as it's stabilised (or whatever) by relativistic effects.
Title: Re: Practical Jokes
Post by: Ultima on 20/05/2005 18:15:04
Yup it's a shame you can't get hold of Francium [;)]. It's only made in a handful of atoms at a time. If you did somehow get a chunck of it, it would react strongly? So it would be a bit dangerous to say the least.

wOw the world spins?
Title: Re: Practical Jokes
Post by: ljssol on 07/06/2005 10:01:34
[:D]I'm happy to have this webpage. I hope it would help me a lot.
Title: Re: Practical Jokes
Post by: johndiver on 08/06/2005 04:55:17
I saw a pellet of sodium fizz like crazy before the hydrogen exploded ... the teacher dropped it into a bucket of water at our chemistry club; didn't expect the bang though.
My favourite chem prank is to put a few drops of indicator dye into one's beer or coffe, then wait for them to scream when they pee red or blue. Although phenolphthalein has some carcinogenic properties, a few drops is all that's required.
Title: Re: Practical Jokes
Post by: rabeldin on 28/06/2005 22:31:38
Too complicated. I just filled the sugar bowl with salt.

R A Beldin,
Improbable Statistician
Title: Re: Practical Jokes
Post by: Andrew K Fletcher on 08/07/2005 15:52:15
Iron ferrous sulphide and I think sulphuric acid, or was it nitric acid?

Anyways, it makes the foulest smelling stink bomb, managed to stink out the local boozer with this mixture, had everyone holding their noses :)
Title: Re: Practical Jokes
Post by: chris on 09/07/2005 10:50:55
Was it the mixture, or merely the madras you'd consumed earlier ?

"I never forget a face, but in your case I'll make an exception"
 - Groucho Marx
Title: Re: Practical Jokes
Post by: simeonie on 09/07/2005 20:10:01
OH I really wanna do the stink bomb one. Would you like put it in a small jar or something? How much do you need and how do you get hold of it? Is it expensive?

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Title: Re: Practical Jokes
Post by: Andrew K Fletcher on 10/07/2005 10:26:16
just a tiny jar or bottle with a little acid in and drop in a small amount of iron ferrous sulphide, (or sulphate, not really sure now) readilly available at any chemical outlet. inexpensive also. You may be able to obtain some from your chemistry class.

again, not sure if the fumes were toxic, but the acid definately will burn holes in your clothes and skin so take care when using it.

Chris, naa this was far worse than any madras methane production.

"The explanation requiring the fewest assumptions is most likely to be correct."
K.I.S. "Keep it simple!"
Title: Re: Practical Jokes
Post by: simeonie on 20/07/2005 11:01:53
ooooo this is soooo tempting. My friend got banned from a news agents for setting off a stink bomb off. What a goon he is lol
Title: Re: Practical Jokes
Post by: David Sparkman on 28/07/2005 17:08:01
Ouch,
A practial joke doesn't hurt people.

Try to add some methylene blue solution to food in such a way that it can't be seen: a dark drink, or add crystals to a food where they don't stand out. It is available at pet stores as it is used in fish tanks to kill ick a fungus. The stuff is not considered poisonous, but don't go overboard as a few drops or crystals will do the trick.

Methylene blue is a dye and will stain the tongue and mouth blue for a day, and even more interesting (for men only, women don't watch) it turns their urine green...

David
Title: Re: Practical Jokes
Post by: simeonie on 29/07/2005 12:45:12
oh cool that is good.

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Title: Re: Practical Jokes
Post by: weebrain on 01/08/2005 04:51:26
i know quite a few of these:-

To make a paint bomb you simply need a metal paint can with a refastenable lid, a nice bright color paint (green, pink, purple, or some gross color is perfect!), and a quantity of dry ice. Place the paint in the can and then drop the dry ice in. Quicky place the top on and then run like hell! With some testing you can time this to a science. It depends on the ratio of dry ice to paint to the size of the can to how full it is. If you are really pissed off at someone, you could place it on their doorstep, knock on the door, and then run!! Paint will fly all over the place HAHAHA!!



loony
Title: Re: Practical Jokes
Post by: simeonie on 01/08/2005 11:26:19
HA! As if. I am gonna do that coz at school we are painting this room so well lol and no one will know it was me

he he he he

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Title: Re: Practical Jokes
Post by: finchbeak on 05/08/2005 04:58:34
Are y'all trying to get Simon expelled?
I suspect this thread might qualify as "contributing to the delinquency of a minor."
In a lab I used to work in, my friend once painted the rims of all the coffee cups in the lunchroom with a nail polish that is designed to taste terrible.. supposed to deter nail biting.  Anyway, the stuff was invisible on the ceramic cups and it didn't come off with washing.  Everybody thought the coffee was terrible - so they brewed another pot, which was just as bad.  Then they decided it must be the water and, sure enough, the water tasted terrible too.  Of course, this was at an environmental testing lab, so there were plenty of experts around to theorize on what might be in the water and how to test for it, etc.
Title: Re: Practical Jokes
Post by: simeonie on 05/08/2005 13:15:10
Isn't nail polish poisness? If not my sister is in for it

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Title: Re: Practical Jokes
Post by: weebrain on 11/08/2005 05:31:58
hmm a practical joke, r u insane.

sir loony
Title: Re: Practical Jokes
Post by: simeonie on 12/08/2005 09:29:15
What is a blasting cap?

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Title: Re: Practical Jokes
Post by: lock50 on 17/08/2005 16:02:09
What else can i do with it?  [8]


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Title: Re: Practical Jokes
Post by: Razor on 17/08/2005 16:55:05
Here's what i can see as being the ultimate practical prank, or as the most funny ""injureless"" crime anyway!

What you need:
A toilet.
Hydrogen Peroxide.
Sodium Iodide.

The Job:
Put some sodium iodide in the bowl of the toilet.
Empty some hydrogen peroxide in the toilet refill tank.

The Effect:
As someone comes along to flush the toilet it will start bubbling foam then fill the whole bathroom with it's foaminess of Doom.
It's a prank and a half!

Recently witnessed on Brainiac Science Abuse (UK Science Programme with a twist)[:)][:)]

-----------------------
"We apologize for the error in last week's paper
In which we stated that Mr. Arnold Dogbody was a defective in the police force. We meant, of course, that Mr. Dogbody is a detective in the police farce."
-Correction notice in the Ely Standard, a British newspaper

For those who haven’t seen this yet, it's a must view!!!!
CHECK IT OUT!!!!

http://www.ebaumsworld.com/presaddress2.shtml

Also:
http://www.svspower.com/
For Dodge Viper Fans.
Title: Re: Practical Jokes
Post by: simeonie on 22/08/2005 12:23:30
I love that program. There is a new series too! After the turdy history abuse. I love the caravans blowing up

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Title: Re: Practical Jokes
Post by: Razor on 22/08/2005 13:48:07
I hated History Abuse, all because of the part where they make historic food!!!
I mean, Cow brains, pig skin????? None of that for me thank you.

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Title: Re: Practical Jokes
Post by: finchbeak on 22/08/2005 18:59:12
It's even better if you add break open one of those light sticks and pour the contents in.  Eerie green glowing foam of doom!
Title: Re: Practical Jokes
Post by: David Sparkman on 23/08/2005 02:56:04
Possession of a pipe with explosives in it will result in prison time in the United States. This is not a joking or practical joking matter. Lets get back to practial jokes.

David
Title: Re: Practical Jokes
Post by: simeonie on 24/08/2005 10:25:46
Razor do you have anymore information on that prank with the toilet?

Are the chemicals hard to get?

How much do you need?

Coz I am going to do it

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Title: Re: Practical Jokes
Post by: Razor on 24/08/2005 13:29:38
quote:
Originally posted by simeonie

Razor do you have anymore information on that prank with the toilet?

Are the chemicals hard to get?

How much do you need?

Coz I am going to do it

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Well i dont know any shops that sells chemicals open to the public, plus i do aquire my stuff from kevin's dad(He's a science teacher/professer).
But the best place to buy them is the internet.
Preferrably http://www.kno3.com/ , it's the best place to get your hands on some mischief in a bottle, try it!
It's not that hard to get!

And about the amount, for the Sodium Iodine, squirt it round the bowl like you would with Bleach, and the Hydrogen Peroxide, about 2 or 3 caps full(depending on the size of your cap).

Just experiment with it, until you can adjust it to the amount you think it suits, but it's good stuff when you set the trap at the beginning of lunchtime, and return just before next lesson finding the whole cubicle full of your foamy doom! lol! Good stuff! Good stuff![:)][:)]


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Title: Re: Practical Jokes
Post by: simeonie on 24/08/2005 20:01:34
Cool that is ace!

Can you not buy them from a chemist or anything?

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Title: Re: Practical Jokes
Post by: Razor on 24/08/2005 20:05:04
If you can find one that will sell it to you.

-----------------------
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Helpful Warnings: "CAUTION: Knife is very sharp. Keep out of children"

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Title: Re: Practical Jokes
Post by: Razor on 25/08/2005 20:00:57
Here's a site that can advise you on the need to know basis of what experiments you can do with the easily obtainable chemicals, and the not so easily obtainable.
http://www.totse.com/en/bad_ideas/index.html

Click on the KA_F***ING_BOOM! link to view the dangerous experiments.

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Title: Re: Practical Jokes
Post by: simeonie on 26/08/2005 00:04:55
Razor that site you sent is AMAZING! I am in fits of laughter. Thanks man!

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Title: Re: Practical Jokes
Post by: gerard on 26/08/2005 00:33:08
any good farmers co-op should have the materials.
mate of mine went and bought 5M HCl from one over here. was suprised he wasn't even ID'd
Title: Re: Practical Jokes
Post by: Razor on 26/08/2005 07:23:38
quote:
Originally posted by simeonie

Razor that site you sent is AMAZING! I am in fits of laughter. Thanks man!

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No Problem.

-----------------------
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Helpful Warnings: "CAUTION: Knife is very sharp. Keep out of children"

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Title: Re: Practical Jokes
Post by: Razor on 26/08/2005 07:25:36
quote:
Originally posted by gerard

any good farmers co-op should have the materials.
mate of mine went and bought 5M HCl from one over here. was suprised he wasn't even ID'd


Really? No ID check?
Yep, thats it, i gotta try that!

-----------------------
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Helpful Warnings: "CAUTION: Knife is very sharp. Keep out of children"

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Title: Re: Practical Jokes
Post by: chip on 02/09/2005 14:00:12
If you take an old fashioned metal watering can and fill it with explosives, sealing every thing but the spout which is filled with projectiles, when you light it it fires the projectiles out the spout or obliterates the watering can. Either way good fun.[B)]

Minerals are fun
Title: Re: Practical Jokes
Post by: neilep on 02/09/2005 18:31:40
fool your neighbour into thinking there has been an extremely localised winter by sprinkling talcum powder over your house garden and cars.

Men are the same as women.... just inside out !!
Title: Re: Practical Jokes
Post by: Steve Vai on 03/09/2005 20:03:05
Where do you find sodium iodide?
i cant find it anywhere online

n some other pranks, prehaps biology related, would be to put salt in a pattern on their lawn in the middle of the night

"Turkeys killed my family" - Chip, 02/09/2005, 12:49
Title: Re: Practical Jokes
Post by: nndaia on 29/09/2005 05:18:41
Two words: nitrogen triiodide.
Mix ammonia with pure iodine crystals. You want the gel that forms. Paint it on doorhandles, or, even better, taps, but only use a VERY SMALL AMOUNT. Once dry, it is percussion sensetive and highly explosive. Too much will take someone's fingers off.

I can picture in my mind a world without war, a world without hate.
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Title: Re: Practical Jokes
Post by: charmaine on 04/10/2005 13:16:55
i need to know where to by sodium iodide and hydrogen peroxide please my brother is asking for the toilet joke
Title: Re: Practical Jokes
Post by: itsjustme on 04/10/2005 14:46:37
hidrogen peroxide is used for bleeching hair, you get it from your local pharmacy/chemist. i am also trying to find sodium iodine, i just saw that toilet thing being done on tv, ill post the video tomorrow.
Title: Re: Practical Jokes
Post by: itsjustme on 06/10/2005 04:41:09
here is the vid:
http://www.geocities.com/sasha007k2/toilet.wmv
Title: Re: Practical Jokes
Post by: epeius on 13/11/2005 23:31:54
since ye all seem to love doing stuff to the alkali metals with water has it not occured to anyone what kind of reaction you get with an acid and said metal,sodium and vinegar... never try potassium, that is why the lump of sodium in the swimming pool got such a good bang instead of just fizzing around..
Title: Re: Practical Jokes
Post by: jmode on 15/11/2005 00:54:36
look up nitrogen triiodide.

if you are a good chemist then the parts will be easy to find. This is the same as flash powder. there are several recipies on line.

be carefull and safe.

jmode
Title: Re: Practical Jokes
Post by: jmode on 15/11/2005 01:04:01
quote:
Originally posted by Steve Vai

Where do you find sodium iodide?
i cant find it anywhere online

n some other pranks, prehaps biology related, would be to put salt in a pattern on their lawn in the middle of the night

"Turkeys killed my family" - Chip, 02/09/2005, 12:49



You might try betadine it is found in most dugg stores it is a liquid.
be carefull jmode
Title: Re: Practical Jokes
Post by: ukmicky on 15/11/2005 01:05:47
how are you supposed to carry that stuff once its made

o i c u dont[B)][:)]


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Title: Re: Practical Jokes
Post by: jmode on 17/11/2005 05:29:11

It is faily stable as a liquid however once it is dry stand back.


quote:
Originally posted by ukmicky

how are you supposed to carry that stuff once its made

o i c u dont[B)][:)]


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Title: Re: Practical Jokes
Post by: Steve Vai on 15/01/2006 00:05:32
lookin through this post again, havent been on forum for ages, i have a couple of questions

the sodium iodide and hydrogen peroxide reaction, why does it work? can someone please explain the equations or something to me, and also what would substitute the sodium iodide? any iodine based salt or what?

thanks, and sorry if my questions seem stupid, the GCSE course isnt the peak of chemical enlightenment lol

"Turkeys killed my family" - Chip, 02/09/2005, 12:49
Title: Re: Practical Jokes
Post by: Ray hinton on 02/02/2006 20:38:33
just drop an un-used tampon in someones drink when they are not looking,they are thirsty little beggars.

every village has one !
Title: Re: Practical Jokes
Post by: Life on 03/02/2006 19:02:02
Someone correct me if im wrong, but i think..

Hydrogen Peroxide is an oxidising agent which means it has oxygen readily available. On contact with NaI, this oxygen is (somehow?)released and im guessing is cought up in the liquid to form bubbles..

I Think this is the right balanced equation..

2H2O2 + NaI = 2H2O + O2 + Na + I
Title: Re: Practical Jokes
Post by: Life on 03/02/2006 19:03:10
Sorry, dat was to (Steve Vai)
Title: Re: Practical Jokes
Post by: ScooterTrash on 05/02/2006 07:38:57
Although I have not tried it in a toilet, I think this might be a viable alternative:
(The elements are much easier to obtain…)
Simply use baking soda, (also known as Sodium bicarbonate or Sodium Hydrogen Carbonate (NaHCO3)), and acetic acid (vinegar)
Turn off the valve that feeds water into the tank, and then flush the toilet once to empty the tank.
Pour the vinegar into the tank, and dump a box of baking soda into the bowl.
When the sodium bicarbonate mixes with the acetic acid it should give you a reaction that produces water and carbon dioxide. (Lots of bubbles)…
I haven’t tried it with a NaHCO3 / H2O dilution, but I believe it SHOULD work.


quote:
Originally posted by Steve Vai

lookin through this post again, havent been on forum for ages, i have a couple of questions

the sodium iodide and hydrogen peroxide reaction, why does it work? can someone please explain the equations or something to me, and also what would substitute the sodium iodide? any iodine based salt or what?

thanks, and sorry if my questions seem stupid, the GCSE course isnt the peak of chemical enlightenment lol

"Turkeys killed my family" - Chip, 02/09/2005, 12:49

Title: Re: Practical Jokes
Post by: elegantlywasted on 07/02/2006 21:37:08
More bubbly fun...

mix hydrogen peroxide and yeast... it forms water and oxygen, it will rise and bubble, alot of fun [:)] be careful that no one is smoking (poof!)... and make sure you arent the one cleaning up the sticky yeast mess
Title: Re: Practical Jokes
Post by: Vadermort on 16/02/2006 04:25:59
I've done one pretty funny one for a joke.

AMMONIUM TRIIODIDE!!!

it makes a loud bang and makes a brown stain when touched.
It is a contact explosive and is VERY sensitive. a dust sized particle will create an audible pop.
All you need is some iodine crystalls the size of a pencil rubber. and some ammonia hydroxide or any other ammonia solution (the stronger the better) i did my with 0.5mol/dm3

You can also make paint with it and paint key holes and toilet seats...well you get the idea.
Put the small amount of Iodine in a jar and add excess ammonia(12-16 ounces) Swirl the mixture for like 5 minutes and let it settle,make sure its mixed with the ammonia.
filter the mixture and collect the residue.DO NOT DRY IT! it is safe to handle when wet.the solid black stuff is what you want. It becomes pretty useless after a few days.
Put a little into a paper ball and let it dry. you can put it onlop of doors when it is dry (do this very carefully) It exploded in a friend of mine's hand and it hurt a bit.
IT IS VERY LOUD.
My high school teacher threw the filter paper away in her dustbin and it went off! making a big bang.

DO NOT USE LARGE AMOUNTS! CAN CAUSE PERMANENT EAR DAMAGE.

b.s
Title: Re: Practical Jokes
Post by: Vadermort on 16/02/2006 04:27:11
If you want to know how to make paint...ask me
it uses more iodine though.


b.s
Title: Re: Practical Jokes
Post by: lockhart on 13/04/2006 22:35:42
i was wonderin if any1 knew wat was the minimum concentration of hydrogen peroxide the toilet foam prank would require, i am in the last year of my high school and need this year to go down in history, i was goin to purchase hydrogen peroxide, concentration 35% from kno3.com but not sure where i can get the sodium iodide, does anyone know any links
Title: Re: Practical Jokes
Post by: parsley on 19/04/2006 00:08:53
Something me and a couple of friends did when we finished our GCSEs was to put food colouring in the cisterns of all the toilets around school - people flush them, and all this coloured water comes down (but some of the food colouring stained the loos for weeks!).
Also, Branston pickle, on the loo seat and dripping down in the toilet. The teachers put a 'closed for health and safety' notice on that entire toilet block!
Cling film is a good one too.
They are all cheap, easy, and harmless.
And so funny.
"Argh the toilet's flushing green water!"

"I just set fire to the table!"
Title: Re: Practical Jokes
Post by: Vadermort on 20/04/2006 01:23:16
About the NaI equation. Does the NaI act as a catalyt in the decay of H2O2? i know MnO2 does that.
The equation goes as follows

H202 + NaI --> H2 + O2 + NaI

b.s
Title: Re: Practical Jokes
Post by: realmswalker on 07/05/2006 09:00:36
quote:
Originally posted by simeonie

Razor do you have anymore information on that prank with the toilet?

Are the chemicals hard to get?

How much do you need?

Coz I am going to do it

----------------------
http://www.simeonie.co.uk
Check it out. Click on the forums


table salt is 70% sodium iodide, the glass tube inside a glowstick (that you break to start it) containes hydogen peroxide in a concentration of 35%, so drain the fluid outside the glowstick out (or else it will react and reduce the effectiveness of the foam) and then then break a few and poor the contents into a container, voila, hydogen peroxide
Title: Re: Practical Jokes
Post by: Cut Chemist on 09/05/2006 02:58:23
Is it true that eyedrops cause uncontrolable diharea???
(It was on the wedding crashers)
Title: Re: Practical Jokes
Post by: Cut Chemist on 09/05/2006 03:01:05
is it ture that eyedrops cause uncontrolable diharea??
Title: Re: Practical Jokes
Post by: Mr Andrew on 04/06/2006 19:11:40
I think the reaction for the hydrogen peroxide and sodium iodide thing is as follows:

2NaI + 3H2O2 --> 2NaOH + H2 + 2HI + 2O2

That would make sense becuase the bubbles look like soap bubbles and NaOH is lye (used in making soap) and the oxygen and hydrogen gases would help make the bubbles.  The HI is a weak acid and would react a little with the NaOH to make water and NaI again (not that much though).  I could be wrong but it makes sense so...I'll stick by it!

"His mind is the ultimate weapon!"-MacGyver television series
Title: Re: Practical Jokes
Post by: Nick Meyer on 05/06/2006 03:48:47
As earlier spoken of in this thread every one was wondering how to get sodium. one way that i have heard of but have never attempted is the electralisis of a sodium chloride solution. just take a salution of sodium chloride and run a DC current through two electrodes with large surface areas. On one of the electrodes sodium ions will gather in the form of negative sodium. this is not explosive but if you reverse the electrodes the sodium becomes possitive. Make sure that you do the reversing polarity step in oil or have the hospital on speed dial!
   Oh and also the the iron ferrous sulfide bomb is deadly! if you smell the gas (which is the same thing that comes off of rotten eggs) it has already reached the cronicaly toxic point.
   please excuse my spelling... i specialize in chemistry not english.

Nick
Title: Re: Practical Jokes
Post by: Mr Andrew on 06/06/2006 22:55:18
Sorry, it is a catalized reaction.  I talked to my chemistry teacher and he gave me the reaction:

NaI + 2H2O2 --> NaI + 2H2O + O2

Not sure how much NaI you would use because it is a catalyst.  Probably the more is better because there would be more molecules to react with the peroxide and it would run faster.

"His mind is the ultimate weapon!"-MacGyver television series
Title: Re: Practical Jokes
Post by: Nick Meyer on 07/06/2006 18:20:06
You guys want a good toilet prank? there isnt much to this one but what you do is take those firework poppers... those little sacks of rocks that you give to kids at halloween and they pop when thrown on the ground??? or you could use that nitrogen triiodide stuff. but anyway place it under the toilet seats (the ones you change for wizzes and dumps) and when the target sits down!?!?!? Lets just say snap crackle and pop got renamed to snap crackle and OH @*#&![:D][;)][8D]

Nick
Title: Re: Practical Jokes
Post by: Mjhavok on 04/08/2006 02:18:41
I remember at school the teacher did an experiment with caesium behind protective glass. She placed the ceasium in a glass container about 30 cm wide and half full with water. The caesium was only about 2 cm squared and it exploded and shattered the container. It was awesome lol. Back then I always imagined getting a huge chunk and tossing it in a lake to see what would happen. Probably get done for polluting the lake or something.
Title: Re: Practical Jokes
Post by: moonfire on 04/08/2006 03:13:24
Too funny...LOL

"Lo" Loretta
Title: Re: Practical Jokes
Post by: Mjhavok on 07/08/2006 15:37:01
They where funny days.
Title: Re: Practical Jokes
Post by: moonfire on 07/08/2006 16:51:03
i want to do that to someone so bad...lol

"Lo" Loretta
Title: Re: Practical Jokes
Post by: lightarrow on 09/08/2006 12:38:55
A joke: mix very well equal amounts of aluminium fine powder and iodine powder (no more than a few grams); put a little piece of very cold ice on it (so that it doesn't melt immediately). When the ice starts melting, the water reacts with the mix, producing a little flame and violet fumes of iodine and aluminium triiodide. Be careful not to breath those fumes!

Al + 3I = AlI3

By the way: those equations with H2O2 and NaI are wrong. This is what happens:
(1) H2O2 + 2NaI = 2Na+ + I2 + 2OH-
(2) H2O2 = H2O + 1/2 O2
Probably, (if pH is >7) there is also the formation of some IO3-:
3I2 + 6OH- = IO3- + 5I- + 3H2O

You can easily see the iodine (I2) produced from the reaction, because the solution becomes brown.
Title: Re: Practical Jokes
Post by: miles on 17/08/2006 14:38:37
you will need:
a key to the nearest toilet
another key that isnt the same shape
a tub of laxitives
a victim
a cup of coffee/tea/any drink

1.shout help. the victim should go to see what the noise is whilst thier gone puor the tub of laxitives into the victims drink then run the other way note:the victim once drunk his drink will feel the need to desperatly go to the toilet they will grab the wrong key and will struggle to open the bathroom door they will poo their pants a lot this is very funny
Title: Re: Practical Jokes
Post by: lightarrow on 24/08/2006 17:27:07
another little joke with things quite easy to find: Zinc powder and sulfur powder.
Mix well ~ equal parts in volume of the two, then ignite the mix with a hot flame, like the one of a pen flame. It burns with a yellow-green flame, producing a lot of white fumes.

To ignite the mixture you could also use KNO3/Sugar about 50/50 in weight, very well mixed (the sugar must be ground to fine powder; all powders must be dry).
Title: Re: Practical Jokes
Post by: weed4me on 25/08/2006 23:56:42
i know this isnt really a chemically related prank but nevertheless i have always found it funny to wait until a christmas that snows properly (we dont have many in the UK) and get a friend to build u inside a snowman on someones porch. not only does it scare the **** out of them that a snowmans on their porch but when u jump out yellin something it usually sets of the chemical reaction in their panties. oh yeah make sure u get ur friend to knock. hypothermias a bitch.

"You have to stay in shape. My grandmother, she started walking five miles a day when she was 60. She's 97 today and we don't know where the hell she is."
Title: Re: Practical Jokes
Post by: lightarrow on 02/09/2006 20:14:08
Another little joke with (quite) simple substances:

Put some copper nitrate (Cu(NO3)2) in a piece of aluminum foil (better if more layers), with some table salt (NaCl) and a bit of water.
Wrap the foil immediately and go away of it.

It will produce reddish-brown fumes (NO2) and hot-liquid squirts.
Be careful!
Don't breath those fumes!
Title: Practical Jokes
Post by: i am bored on 26/02/2008 02:08:05
this is super funny...well so Ive heard

what you need is

a bathroom with a metal doorhandle
some uninsulated wire
a car battery
and some electric tape


OK open the door so you so u don't have 2 touch the handle
on the inside of the bathroom take out your car battery
and tape a length of wire to the negate and positive poles on the battery
take the positive wire and the negative wire and tape them to the door knob one wire at each end
close the door
and in THEORY it will shock the living daylights out of someone. depending on the battery... a car battery will be the best...Ive never done this so i don't know if it will work

whats its supposed to do is complete the circut charging the door knob. and turning it into the joybuzzer on steroids. either it will shock you or the battery will blow up and may blow off the door. either way it should be a blast
Title: Practical Jokes
Post by: Bored chemist on 26/02/2008 19:46:16
That won't work. You just short circuit the battery through the door handle. The most likely outcome is that you will burn out the wires.
Title: Practical Jokes
Post by: i am bored on 26/02/2008 21:33:22
darn....well then is there any way i can make a door handle shock someone without shorting the battery and frying the wires
Title: Practical Jokes
Post by: Carolyn on 26/02/2008 23:33:34
darn....well then is there any way i can make a door handle shock someone without shorting the battery and frying the wires

Surely it's your father and NOT your wonderful, loving mother you want to shock!
Title: Practical Jokes
Post by: i am bored on 27/02/2008 00:25:21
neither of you
Title: Practical Jokes
Post by: Professor Gaarder on 27/02/2008 00:59:33
oh, gawd.

the reason you would short the car battery is because you're trying to pass too powerful of a current through too weak of a wire.

also, it would be dangerous to try, you could possibly hurt the person terribly and as they said earlier, practical jokes are meant to be . . . anything but mean. if the victim isn't laughing after the prank, it wasn't a good idea . . .

just use a smaller battery, that would be easier to conceal.
Title: Practical Jokes
Post by: i am bored on 27/02/2008 02:32:38
like what. a AAA could be too small to really notice and AA would more than likely have the same effect as static electricity I'm assuming the largest i can go without frying the wires is a D size. plus it would be kinda suspicious if you walk into a school bathroom with a backpack... and i can carry a D size battery, around 3 feet of wire and a roll of electric tape on my person and nobody not even know its there
Title: Practical Jokes
Post by: Carolyn on 27/02/2008 03:15:16
like what. a AAA could be too small to really notice and AA would more than likely have the same effect as static electricity I'm assuming the largest i can go without frying the wires is a D size. plus it would be kinda suspicious if you walk into a school bathroom with a backpack... and i can carry a D size battery, around 3 feet of wire and a roll of electric tape on my person and nobody not even know its there

 [:(!]BEHAVE!
Title: Practical Jokes
Post by: i am bored on 27/02/2008 03:17:25
i can't do it in the new school....they will have cameras in every corner of the halls, they will know if i pulled off something like this.
Title: Practical Jokes
Post by: Professor Gaarder on 27/02/2008 03:25:41
well, I don't want to give you any bad ideas ;b but if you want it to succeed, get a lithium AA. More energy, same size. It's worth the money.
Title: Practical Jokes
Post by: i am bored on 27/02/2008 12:18:10
sounds good
Title: Practical Jokes
Post by: Bored chemist on 27/02/2008 19:20:09
If you really want to do this then the first thing you need to do is learn some of the basic science of electric circuits.
Title: Practical Jokes
Post by: i am bored on 28/02/2008 00:15:05
ok....and im assuming if i can do this with an doorknob i can also do it to an ....locker door....or a metal rod...kinda like a cattle prod
Title: Practical Jokes
Post by: Professor Gaarder on 28/02/2008 01:09:35
well, to complete your objective, yes, you would need knowledge of electrical science. however, if you just want to see something happen, watching a wire short could be just as surprising to the victim.
Title: Practical Jokes
Post by: Professor Gaarder on 28/02/2008 01:10:18
just make sure it's external, you don't want their stuff catching fire if it does short.
Title: Practical Jokes
Post by: i am bored on 28/02/2008 02:32:10
in that case i will just thick to the doorknob and the cattle prod....i may be a bit of a pyro but i dont want to have to pay for burnt books and what not
Title: Practical Jokes
Post by: Bored chemist on 28/02/2008 19:42:31
Do you all understand that,as soon as you connect it up, the wires willoverheat and fail? If the "victim" is there at the time he will see you setting it up; if he's not then he may notice the smell of smoke but there won't be any other effect on him.
Since it won't work with a doorknob it shouldn't suprise you to learn that it also won't work with a locker door or a bit of wire.

Really, learn something about electricity.
Title: Practical Jokes
Post by: Professor Gaarder on 01/03/2008 18:21:55
yeah. you'd have to have some sort of touch-sensitive activator to release energy from the battery into the wire. and that would just get expensive.

If you want to do this so much, just get a real joy buzzer and tape it to the bottom of the doorknob.
Title: Practical Jokes
Post by: Bored chemist on 01/03/2008 20:43:19
"yeah. you'd have to have some sort of touch-sensitive activator to release energy from the battery into the wire. and that would just get expensive."

Even then you wouldn't get any current through the victim.
Title: Practical Jokes
Post by: Professor Gaarder on 02/03/2008 00:23:06
very true.

once again, just use a real joy buzzer so you don't burn their fingerprints off.
Title: Practical Jokes
Post by: Professor Gaarder on 02/03/2008 00:26:11
but I suppose it's better than taking a friends orange at lunch and sticking the zinc and copper diodes in it like that "Charging an iPod with an orange" NakedScientists experiment.
Title: Practical Jokes
Post by: Anarchistkid on 03/03/2008 02:27:52
Nitrogen Triiodide jst lay it when its wet
Title: Practical Jokes
Post by: i am bored on 05/03/2008 00:27:08
what does that do????????
Title: Practical Jokes
Post by: Professor Gaarder on 07/03/2008 23:03:45
oh oh

DON'T TELL HIM!!!!!!!!!!!!!!!!!!!!!!!!
Title: Practical Jokes
Post by: Bored chemist on 08/03/2008 02:18:30
If he's too dumb to find this
http://en.wikipedia.org/wiki/Nitrogen_triiodide
then I don't see him making use of the information.
If he is bright enough to look on wiki then I hope he has the brains to realise that this is a foolish game to play. If not then I don't see it as my problem that his education has missed out "Don't play with explosives- they might kill you".
Title: Practical Jokes
Post by: i am bored on 11/03/2008 00:59:24
Keep in mind that wikipedia is not always accurate ...... anyone can go in there and change infomation, why do you think I'm asking these questions on a SCIENCE FORUM! and I know not to play around with explosives from experience, I may be young but I'm not as dumb as I look.  I'm a guy, I'm 14 and curious.....that's why I ask questions!  I didn't expect to be called dumb for asking them!
Title: Practical Jokes
Post by: Mr Andrew on 13/04/2008 18:12:08
Asking the questions is not important...trying to find an answer is.  Asking other people for the answer is actually less useful than doing some research on your own and figuring it out for yourself.  You learn something that way, as opposed to have the answer simply given to you.  It's harder that way but if you're really after learning something new and not just spouting "I'm a kid and I ask why" because you've been told that's what kids do then doing research yourself is the way to go.  If you have to ask anyone anything it should be to explain some of your research to you because you can't quite understand it...not to tell you the answer.
Title: Practical Jokes
Post by: lyner on 14/07/2008 14:02:45
Quote
not just spouting "I'm a kid and I ask why" because you've been told that's what kids do
You're so right. Asking and inquiring need to be followed up by thinking and reasoning.
Title: Practical Jokes
Post by: kdlynn on 14/07/2008 21:36:48
BUT even if he did try to find the answer himself, wouldn't it be wise to check the information that he found with, say, a group of people who have studied science? or at least enjoy it? i think that's pretty smart. and it's a little harsh to call someone dumb for asking a question. so act like a grown up and be nice!
Title: Practical Jokes
Post by: Salamander on 17/07/2008 02:01:18
When I was in grade school, probably about age 10 and 45 years ago, water fountains were designed such that there was a spoon-like metal hood protecting the spigot from someone getting their lips directly on the plumbing where the water came out. Futhermore there was a bent piece of metal with a hole in it just above the pipe where the water came out. Once in  a while someone would take a penny (U.S.) and place it between the water spigot and the bent piece of metal with the hole in it through which the water would otherwise shoot in an arc to land on or near the drain. This only took a second or less to accomplish, so that even if the next person in line (sorry, queue for you in the UK), were standing quite close behind the one fitting the penny in place, they would harldy notice it. The result was that, on turning the lever to get the cold refreshment, the water hit the penny from beneath and slam it against the hole in the piece of metal, forcing it flow, quite forcefully, in a radial pattern along the bottom of the penny, spraying everything for at least a foot around. Many shirts were made this way. It was a lot of fun to watch because most people would stare in disbelief for a split second before reacting. Totally harmless...unless of course, you are the perpetrator and get caught by the
victim.

Another gag I like is to Super-glue a quarter to the middle of the floor in a busy hallway and watch the victim bend over to retrieve it. Sometimes they are so confident of picking it up that they lose balance and make a most amusing recovery. You can take bets on how many times they will try before giving up, or how many other pedestrians they will bowl over or cause to fall in the act. Usually harmless, though the same caveat as above applies.

Let me know if want more!
Title: Practical Jokes
Post by: easywrite on 17/04/2009 13:01:10
I always liked the stapler in the jelly gag. Very simple certainly easier than the jelly in the stapler. Theres a guide to doing it here. http://101things4.blogspot.com/2009/04/practical-joke-stapler-in-jelly.html (http://101things4.blogspot.com/2009/04/practical-joke-stapler-in-jelly.html)
Title: Practical Jokes
Post by: lightarrow on 17/04/2009 15:04:18
I always liked the stapler in the jelly gag. Very simple certainly easier than the jelly in the stapler. Theres a guide to doing it here. http://101things4.blogspot.com/2009/04/practical-joke-stapler-in-jelly.html (http://101things4.blogspot.com/2009/04/practical-joke-stapler-in-jelly.html)
Sorry, but I have some difficulty with the language, can you explain me better what is a jelly bowl and what the joke is about?
Thanks.
lightarrow
Title: Practical Jokes
Post by: Chemistry4me on 18/04/2009 01:18:52
It's not even funnny, it's a prank that doesn't work. It's been done too many times. It's just like putting cling film over the seat of the toilet, or someones car! After you do this you ask, where is the stapler?  [::)]
Title: Practical Jokes
Post by: easywrite on 19/04/2009 22:04:33
I think it can work, that's why its been done so many times. Whats the cling film in someones car gag?

P.S. LightArrow. A Jelly Bowl is a glass mixing bowl.
Title: Practical Jokes
Post by: Chemistry4me on 20/04/2009 01:06:39
Whats the cling film in someones car gag?
I hope I don't regret doing this: http://hubpages.com/hub/My-Favourite-Practical-Joke-Stories
Title: Practical Jokes
Post by: Scuba89 on 20/04/2009 10:53:53
HOME-MADE STINKING BOMB.

IRON SULPHIDE MIXED WITH HYDROCHLORIC ACID!
=HYDROGEN SULPHIDE
YOU GET A ROTTEN EGG SMELL.
Title: Practical Jokes
Post by: Chemistry4me on 20/04/2009 11:18:47
Where are you going to get the 'homemade' ingredients from?
Title: Practical Jokes
Post by: lightarrow on 20/04/2009 14:22:17
HOME-MADE STINKING BOMB.

IRON SULPHIDE MIXED WITH HYDROCHLORIC ACID!
=HYDROGEN SULPHIDE
YOU GET A ROTTEN EGG SMELL.
Do you want to kill people?
Title: Practical Jokes
Post by: Bored chemist on 20/04/2009 22:27:49
Never trust a man who can't use the shift key properly.
Title: Practical Jokes
Post by: Chemistry4me on 21/04/2009 02:59:39
Do you want to kill people?
(https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Fbestsmileys.com%2Flol%2F5.gif&hash=45470f1ff84bfb0b1c61e9d6109d521f)(https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Fbestsmileys.com%2Flol%2F1.gif&hash=d8e6686452e290c988dbac6c3e01d75a)
Title: Practical Jokes
Post by: Bored chemist on 21/04/2009 19:55:05
Do you want to kill people?
(https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Fbestsmileys.com%2Flol%2F5.gif&hash=45470f1ff84bfb0b1c61e9d6109d521f)(https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Fbestsmileys.com%2Flol%2F1.gif&hash=d8e6686452e290c988dbac6c3e01d75a)

As a matter of fact, yes I do want to kill people, but if I gave you a list the police would get suspicious.
Title: Practical Jokes
Post by: Make it Lady on 21/04/2009 22:33:02
A friend of mine was nearly expelled from technical college for leaving silver mirror test bombs in all the litter bins on the science floor. The cleaner left the college and refused to return. Getting expelled from technical college is as easy as climbing Everest in the nude!
Title: Practical Jokes
Post by: blakestyger on 22/04/2009 20:29:42
As a matter of fact, yes I do want to kill people, but if I gave you a list the police would get suspicious.

That can pall after a bit (I'm told) - pissing them off is more fun.
Title: Practical Jokes
Post by: blakestyger on 22/04/2009 20:31:25
A friend of mine was nearly expelled from technical college for leaving silver mirror test bombs in all the litter bins on the science floor. The cleaner left the college and refused to return. Getting expelled from technical college is as easy as climbing Everest in the nude!

Getting chucked out of a Tech' is a bit like being bounced out of a leper colony.
Title: Practical Jokes
Post by: Chemistry4me on 23/04/2009 04:52:27
pissing them off is more fun.
Hmmm...
I can think of a better idea that involves 'on' instead off 'off'
Title: Practical Jokes
Post by: Bored chemist on 23/04/2009 19:51:06
In most cases pissing on them would piss them off.