Topic: Oxidation of Se with H2O2 (Read 2726 times)

Bill · « **on:** October 17, 2012, 01:48:18 AM »

Hello,

I would like to know what products are formed when you oxidize Se with H₂O₂

I know that seleneous acid is formed by the reaction:
Se + 2H₂O₂

SeO₂ + 2H₂O

H₂SeO₃

Can SeO₂ that is formed be oxided by H₂O₂ to form selenic acid?
SeO₂ + H₂O₂

H₂SeO₄

What will determine if this reaction is going to occur and how do i prevent this from happening?

Thank you,
Bill

Hunter2 · « **Reply #1 on:** October 17, 2012, 06:40:47 AM »

curiouscat · « **Reply #2 on:** October 17, 2012, 07:24:32 AM »

It works:

http://en.wikipedia.org/wiki/Selenic_acid

Think he wants to stop at Seleneous acid.

Maybe use a different route? Selenium dioxide + water?

Hunter2 · « **Reply #3 on:** October 17, 2012, 07:58:16 AM »

Borek · « **Reply #4 on:** October 17, 2012, 08:12:37 AM »

Please continue the discussion in the old thread.