Diphenyl thiourea, commonly known as white medicine. Its structural formula is:
Baiyao is a water-insoluble white powder used for flotation of copper , lead and zinc sulfide ore. It's a strong galena collector ability, pyrite weak selective flotation slow. In practice, the white drug is dissolved in aniline (added 10% to 20% o-toluidine solution, usually called TT mixture), because of the high cost, the current industrial application is not much.
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