have found an otc source for sodium dithionite (aka sodium hydrosulfite) as a fabric dye remover. wee problem though. In its current formulation it is blended with a small amount of Sodium Carbonate.
its possible that the Sodium Carbonate might not affect the redxn, as this formulation is for reducing dyes, but don't know for sure. wouldn't it be nice though if there were some way of isoating the sodium dithionite. I f i had more acess to solubility data on the salts maybe there is a solvent extraction or something. I am entirely opn to suggestions. Ideas bees?