Hello,
I am going to run an experiment but have found information on nitrous acid HNO2 limited.
Adding 1.6g NO2-/L solution under pH = 2.0 yields nitrous acid at a concentration of 92% HNO2 and 8% NO2- (from distribution diagram).
My application is under about 35psi pressure. I'm also concerned with atmospheric conditions.
It is known that nitrous acid comes out of solution and upon contacting atmosphere is rapidly decomposes to NOx (nasty brown gas).
So, in my sealed vessel, it exists HNO2, and upon release to atmosphere decomposes to NOx.
So, I am curious, at 35psi, what percentage of my HNO2 in solution and what exists as a gas? I figure I would need solubility of HNO2, which I don't have.
Any input is helpful.
Thanks!