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Chemistry Forums for Students => Inorganic Chemistry Forum => Topic started by: TechnicGeek on February 04, 2019, 07:55:23 AM

Title: Sodium Nitrite (NaNO2) Exposure to Air and Purity
Post by: TechnicGeek on February 04, 2019, 07:55:23 AM

Hello everyone.

I heard that when sodium nitrite gets exposed to air for more than 24 hours, it degrades its properties and purity.

How true is the above statement?
What really happens to sodium nitrite when it is exposed to air?

Thanks.

Title: Re: Sodium Nitrite (NaNO2) Exposure to Air and Purity
Post by: chenbeier on February 04, 2019, 08:34:56 AM

It will be oxidised to nitrate in long term.

Title: Re: Sodium Nitrite (NaNO2) Exposure to Air and Purity
Post by: TechnicGeek on February 06, 2019, 07:58:53 AM

Thanks.

By long term you mean starting from the moment it has been exposed?
I had mine in sealed plastic bag but it had clumps in it and they are hard as rock.

Title: Re: Sodium Nitrite (NaNO2) Exposure to Air and Purity
Post by: chenbeier on February 06, 2019, 08:12:48 AM

Probably its only wet.

Maybe do an analysis for concentration of it.