Capiens nigrum agens late in sulfide flotationum usus est.Usus est ab 1925 .
Nomen chemicum dihydrocarbyl thiophosphate est.Dividitur in duo genera;
dialkyl dithiophosphate et dialkyl monothiophosphate.Stabile bonum est
proprietates et adhiberi possunt in pH inferiori sine cito resolutis.