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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: johncurious on July 03, 2005, 10:29:57 AM

Title: nitrous acid
Post by: johncurious on July 03, 2005, 10:29:57 AM

When I mix icecold sodium nitrite and hydrochloric acid solutions, I get a blue colour in the solution and a brown vapour. What species causes the blue colour? Is it nitrous acid? Dinitrogen trioxide? Is there any scientific knowledge of this phenomenon?

Title: Re:nitrous acid
Post by: arnyk on July 03, 2005, 01:57:07 PM

Nitric oxides would form the brown vapour