Neutralizing HNO2 and HNO3 with caustic
Neutralizing HNO2 and HNO3 with caustic
(OP)
Quick question, this may have been posted before, but if I had 12,000 ppm or dissolved nitrate and 300-9000 ppm of dissolved nitrite do you know how much NaOH I would need to try and neutralize it since i have a pH of ~1.9?
Is it almost a 1:1 ratio: i.e. with 5000 ppm nitrite I would need 5000 ppm sodium hydroxide?
Is it almost a 1:1 ratio: i.e. with 5000 ppm nitrite I would need 5000 ppm sodium hydroxide?





RE: Neutralizing HNO2 and HNO3 with caustic
If you wish to simply neutralize the mix, take a reprsentative sample and titrate it with a sodium hydroxide solution to a pH 7. Calculate the amount of sodium hydroxide from the titration required to neutralize the solution.
Orenda
RE: Neutralizing HNO2 and HNO3 with caustic
m777182
RE: Neutralizing HNO2 and HNO3 with caustic
Plesae read FAQ240-1032
My WEB: <http://geocities.com/nbucska/>
RE: Neutralizing HNO2 and HNO3 with caustic
General Chemistry Software
www.pH-meter.info
RE: Neutralizing HNO2 and HNO3 with caustic
To my grasping the answers by orenda1168 and Chembuddy are right. The acidity could be the effect of cations. For example, 0.1 M aqueous solutions of Fe(NO3)3 and NaNO3 at 25 deg C would show pH values of 1.6 and 7.0, respectively. Iron(III) acts as an acid through Fe(H2O)63+.
RE: Neutralizing HNO2 and HNO3 with caustic
Thanks for correcting me.
m777182