Sciencemadness Discussion Board

How to increase concentration of HNO3 ?

KING-pyro - 27-6-2011 at 05:43

Hello everyone,

I hope you can tell me the correct way to increase the concentration of nitric acid
I have a concentration of 70% and I want to raise the concentration above 90%

I hope I find you have to answer

Bowdlerize - 27-6-2011 at 05:56

http://www.sciencemadness.org/talk/viewthread.php?tid=15106#...

Have a look through the site, you will find a wealth of information.

Bot0nist - 27-6-2011 at 05:59

Distill in an all glass apparatus with silicone grease on the ground glass joints. Take extreme care in providing ventilation, fire prevention, personal protection, and use very clean glassware.

quicksilver - 27-6-2011 at 06:59

Distillation.
This really is not something for a new thread. It's a bit surprising.