Sciencemadness Discussion Board

potassium metabisulfite as substitute for sodium (meta)bisulfite

Organikum - 23-6-2007 at 03:20

The title says it all: Can potassium metabisulfite be used as substitute for sodium (meta)bisulfite for isolation of aldehydes and ketones? Or is it not practical for solubility/stability reasons or whatever?

This post makes me think it can:
http://www.sciencemadness.org/talk/viewthread.php?tid=55&...

thx
/ORG

[Edited on 23-6-2007 by Organikum]

not_important - 23-6-2007 at 04:28

I think solubility may be an issue, the potassium salt is pretty low. If you already have the potassium metabisulfite you could always try a run with a couple if cc of acetone.