[nancyVIII]

I have available an aqueous solution of sodium hydroxide (NaOH), as well as an aqueous mixture of sodium bisulfite (NaHSO₃) and sodium metabisulfite (Na₂S₂O₅).  Therefore, I could use either one to neutralize any unreacted H₂O₂, before purifying the DMSO (by vacuum distillation).  Would one of these choices be preferable for this particular reaction?

[Arkcon]

If you have a genuine complaint with the help to this same question of yours in these other threads you started, why not express it clearly, and work with the discussion to reach a consensus?

http://www.chemicalforums.com/index.php?topic=53518.msg196695#msg196695

http://www.chemicalforums.com/index.php?topic=53518.msg196700#msg196700