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Substitute of sodium hydrosulfite in bleaching of talc ore. (1 reply)
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Hello,
Sodium hydrosulfite (or sodium dithionite) is an excellent reducing agent. It acts as a hematite reductant in bleaching process of talc; the reaction is very fast at room temperature. The problem is that the talc becomes contaminated with sulfur compounds. Can anyone suggest another bleaching agent?
Sorry, I don't speak english.
Thank you for understanding!