A na-eji ihe na-ahụ maka njide ojii eme ihe n'ọtụtụ ebe na sulfide flotation.A na-eji ya kemgbe 1925.
Aha kemịkal ya bụ dihydrocarbyl thiophosphate.E kewara ya ụzọ abụọ:
Dialkyl dithiophosphate na dialkyl monothiophosphate.Ọ kwụsiri ike O nwere ihe ọma
Njirimara na enwere ike iji ya na pH dị ala na-enweghị ngwa ngwa ire ere.