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Author Topic: How to prepare 40% (NH)4F?  (Read 9969 times)

Offline Dr.IC

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How to prepare 40% (NH)4F?
« on: 07/04/2009 05:18:34 »
How to prepare 40% ammonium fluoride solution using ammonium fluoride salt?


 

Offline Chemistry4me

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How to prepare 40% (NH)4F?
« Reply #1 on: 07/04/2009 05:41:06 »
I couldn't help noticing the title of this thread. (NH)4F?
 

Offline Dr.IC

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How to prepare 40% (NH)4F?
« Reply #2 on: 07/04/2009 06:17:13 »
even i too tried but, could not find any material... i thought some chemist could help me....
 

Offline Chemistry4me

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How to prepare 40% (NH)4F?
« Reply #3 on: 07/04/2009 06:22:31 »
For a second there I didn't realise who you were Dr.IC!
 

Offline Chemistry4me

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How to prepare 40% (NH)4F?
« Reply #4 on: 07/04/2009 06:23:10 »
even i too tried but, could not find any material... i thought some chemist could help me....
What did you do?
 

Offline Dr.IC

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How to prepare 40% (NH)4F?
« Reply #5 on: 07/04/2009 06:24:50 »
For a second there I didn't realise who you were Dr.IC!
Ya the field i am trying to working is like that..  So Dr.IC.....
« Last Edit: 07/04/2009 06:57:19 by Dr.IC »
 

Offline Dr.IC

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How to prepare 40% (NH)4F?
« Reply #6 on: 07/04/2009 06:25:14 »
even i too tried but, could not find any material... i thought some chemist could help me....
What did you do?

Before posting...
 

Offline Chemistry4me

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How to prepare 40% (NH)4F?
« Reply #7 on: 07/04/2009 06:27:33 »
What did you do to try and prepare 40% (NH4)F?
 

Offline Dr.IC

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How to prepare 40% (NH)4F?
« Reply #8 on: 07/04/2009 06:31:19 »
What did you do to try and prepare 40% (NH4)F?
Tried searching data to prepare the solution....
 

Offline Chemistry4me

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How to prepare 40% (NH)4F?
« Reply #9 on: 07/04/2009 06:41:46 »
Err...

Add 40% NH4F and 60% water? :)
 

Offline Dr.IC

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How to prepare 40% (NH)4F?
« Reply #10 on: 07/04/2009 06:53:26 »
Thanks ... what will be the chemical property....

 


Offline Dr.IC

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How to prepare 40% (NH)4F?
« Reply #12 on: 07/04/2009 09:23:43 »
Err...

Add 40% NH4F and 60% water? :)
Small doubt.. do i have to weigh the salt..
 

Offline Chemistry4me

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How to prepare 40% (NH)4F?
« Reply #13 on: 07/04/2009 09:31:33 »
Tell me exactly what your method is.
« Last Edit: 07/04/2009 09:48:55 by Chemistry4me »
 

Offline Dr.IC

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How to prepare 40% (NH)4F?
« Reply #14 on: 07/04/2009 09:55:18 »
I have NH4F salt, i want 40% concentrated NH4F solution.
 

Offline Chemistry4me

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How to prepare 40% (NH)4F?
« Reply #15 on: 07/04/2009 09:57:21 »
That's not the method.

How do you plan to do this?
 

Offline Dr.IC

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How to prepare 40% (NH)4F?
« Reply #16 on: 07/04/2009 10:11:11 »
thats y i am asking the procedure...
 

Offline Raghavendra

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How to prepare 40% (NH)4F?
« Reply #17 on: 07/04/2009 11:18:10 »
I think you guys should understand.
 

Offline Dr.IC

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How to prepare 40% (NH)4F?
« Reply #18 on: 07/04/2009 11:38:38 »
I think you guys should understand.
hey i am not chem guy.. trying to do some experiment using chemicals...
 

Offline Raghavendra

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How to prepare 40% (NH)4F?
« Reply #19 on: 07/04/2009 12:08:57 »
Ohhh i am sorry , it's ok... Just making fun.. sorry
 

Offline Dr.IC

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How to prepare 40% (NH)4F?
« Reply #20 on: 07/04/2009 12:33:43 »
its ok... any idea...... ???
 

Offline Raghavendra

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How to prepare 40% (NH)4F?
« Reply #21 on: 07/04/2009 12:40:08 »
I am thinking wait a minute.
 

Offline lightarrow

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How to prepare 40% (NH)4F?
« Reply #22 on: 07/04/2009 18:43:21 »
1. Dry the salt (if you heat it, don't heat too much or you won't find anything in the container at the end  :))
2. Weigh 40 g of the dried salt.
3. Add 60 g of pure water.
4. Mix. Finished.

If you use the mix for some reasons at high T., be careful not to inspire the vapours:

NH4F + heat --> NH3 + HF

and HF dissolves the bones...

(A lot of people uses these kinds of salts which releases HF at high T, in precious metals firms, as de-oxidant in soldering. They still haven't understood much what they risk... :()
 

Offline Bored chemist

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How to prepare 40% (NH)4F?
« Reply #23 on: 07/04/2009 20:15:33 »
1. Dry the salt (if you heat it, don't heat too much or you won't find anything in the container at the end  :))

Incidentally, if you use a glass container you may find that the container disapears too. This is not good.
 

Offline lightarrow

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How to prepare 40% (NH)4F?
« Reply #24 on: 07/04/2009 20:49:46 »
1. Dry the salt (if you heat it, don't heat too much or you won't find anything in the container at the end  :))

Incidentally, if you use a glass container you may find that the container disapears too. This is not good.
Yes, it's true  :)  And with porcelain things don't change much.
 

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How to prepare 40% (NH)4F?
« Reply #24 on: 07/04/2009 20:49:46 »

 

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