Black catching agent inoshandiswa zvakanyanya mu sulfide flotation.Yakashandiswa kubva muna 1925.
Zita remakemikari ndiro dihydrocarbyl thiophosphate.Yakakamurwa kuva mapoka maviri:
dialkyl dithiophosphate uye dialkyl monothiophosphate.Yakagadzikana Iine zvakanaka
zvivakwa uye inogona kushandiswa pane yakaderera pH pasina kukurumidza kuora.