megalomania
May 10th, 2003, 09:55 PM
-A-
Frequent Poster
Posts: 100
From:
Registered: JAN 2001
posted 04-15-2001 04:59 AM
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I have the luck to have access to 98+% nitric acid, but I was wondering... If I have, lets say, 70% nitric acid, and I want to distill it with h2so4 under vacumm... will a simple water aspirator be enough for the vacuum?
Bitter
Frequent Poster
Posts: 290
From: 11 Downing Street, London, England
Registered: SEP 2000
posted 04-15-2001 08:02 AM
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I have no idea how much vacuum is needed either. Will it need a vacuum cleaner strength vacuum or what ? I have heard that it can be sucessfully achieved by 'blowing dry air' through the apparatus. I assume by this, all that is needed is to remove the non-N03 vapours from the reaction in order to concntrate it.
By the way, -A-, how can you get 98% nitric ? Is it from the place you work or what ?
-A-
Frequent Poster
Posts: 100
From:
Registered: JAN 2001
posted 04-17-2001 02:54 AM
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I get it from a friend that works at a lab supply.
Frequent Poster
Posts: 100
From:
Registered: JAN 2001
posted 04-15-2001 04:59 AM
--------------------------------------------------------------------------------
I have the luck to have access to 98+% nitric acid, but I was wondering... If I have, lets say, 70% nitric acid, and I want to distill it with h2so4 under vacumm... will a simple water aspirator be enough for the vacuum?
Bitter
Frequent Poster
Posts: 290
From: 11 Downing Street, London, England
Registered: SEP 2000
posted 04-15-2001 08:02 AM
--------------------------------------------------------------------------------
I have no idea how much vacuum is needed either. Will it need a vacuum cleaner strength vacuum or what ? I have heard that it can be sucessfully achieved by 'blowing dry air' through the apparatus. I assume by this, all that is needed is to remove the non-N03 vapours from the reaction in order to concntrate it.
By the way, -A-, how can you get 98% nitric ? Is it from the place you work or what ?
-A-
Frequent Poster
Posts: 100
From:
Registered: JAN 2001
posted 04-17-2001 02:54 AM
--------------------------------------------------------------------------------
I get it from a friend that works at a lab supply.