1

Chemistry / What chemicals could decrease the density of water?

« on: 12/01/2020 02:17:36 »

Is there a chemical that decreases the density of water?

2

Chemistry / Synthesis of perchloroethylene?

« on: 02/01/2020 00:41:35 »

Is there a synthesis for perchloroethylene on an amateur level?

3

Chemistry / Re: Why does my black powder mixture not burn?

« on: 30/12/2019 05:45:18 »

The mix was 20 teaspoons of KNO3 and 5 tea spoons of charcoal which i ground with a mortar and pestle to an "air float" consistency its dry to the touch so i don't think its a moisture problem. I don't have access to sulfur so this was supposed to be a sulfur free mix. I think is has something to do with the ratio of KNO3 to charcoal do you think adding more of one component would help?

4

Chemistry / Why does my black powder mixture not burn?

« on: 30/12/2019 01:35:08 »

I made a batch of black powder from KNO3 and charcoal using a ratio of 80% KNO3 and 20% charcoal. I separately ground up each component in a coffee grinder and mortar and pestle then thoroughly mixed them in a cup. I set some on a tin can outside and tried holding a lighter to it but it just sparked a few times without burning. I made it based on this video however mine did not turn out like this

did I add too much or too little of each? is there anything I can do to save the batch?

5

Cells, Microbes & Viruses / What kind of medium can keep cancer cells alive outside the body?

« on: 26/11/2019 08:23:44 »

In detail what would a cancer cell medium contain?

6

Cells, Microbes & Viruses / can tumors be kept alive outside the body?

« on: 06/11/2019 22:18:54 »

what would a tumor need to stay alive outside the body?

7

Chemistry / Will i get lye if i electrify salt water and boil it down?

« on: 06/11/2019 22:08:24 »

Will i get lye if i electrify a solution of salt water for a period of time and then boil down this solution?
Also to save you the time i am aware of the safety concerns during the boiling step.

8

Chemistry / What is the exact chemical in evapo rust

« on: 19/09/2019 09:34:26 »

what is the name of the chemical that is in evapo rust

9

Marine Science / Is it possible to grow barnacles in some sort of artificial environment

« on: 16/09/2019 23:28:19 »

How can i grow ocean barnacles in something like a fish tank or other life supporting apparatus.

10

Chemistry / Re: Is there an easy way to make oxalic acid at home without nitric acid?

« on: 10/04/2019 00:14:29 »

Thanks for the answers. I'm definitely going to try the sawdust method but i'm a bit confused as to how the oxalic acid is separated from the rest of the mixture.

11

Chemistry / Is there an easy way to make oxalic acid at home without nitric acid?

« on: 09/04/2019 07:06:17 »

i was browsing youtube a few years ago and saw a video that showed a guy fermenting tea bags in white vinegar and the result was oxalic acid which he used as wood stain. Was this fake or did he just make something else? if so how would i make some at home?

12

Chemistry / How can i extract turpentine from tree sap?

« on: 31/03/2019 06:29:49 »

I'm trying to extract and purify the turpentine in spruce tree sap (i would use pine sap but they don't grow where i live)
if anyone has a method please tell me. 

13

Chemistry / Is there a way to separate the HCl from a mixture of salt and vinegar?

« on: 23/02/2019 23:12:05 »

I've heard that when salt and vinegar are mixed a small amount of HCi is formed how could one go about separating the HCi from the rest of the mix?

14

Chemistry / If i dry-distil sodium acetate, will i get acetone?

« on: 23/02/2019 01:55:58 »

i take sodium acetate from a baking soda and vinegar reaction and dry distill it will it make some acetone?

15

Chemistry / How can i extract or make KNO3 from things in nature like pee and ashes or dirt?

« on: 20/02/2019 10:34:49 »

I've been trying for a month now to either extract or make KNO3 from things found in nature such as urine, ashes, soil ect. But I'm looking for a way to do this fast instead of a niter bed which would take over a year and so far all my attempts have failed. How do i do this?.