sulphonamides

As a especially effective collector for processing copper sulphide ore, methyl sulphonamide features good selectiveness and strong collection.

甲硫氨酯作为硫化铜选别有效捕收剂,具有选择性好、捕收力强性。

It was found that the sulphonamide group and the substituents on nitrogen atom within the molecule would effect the properties of these dyes.

坚牢和光谱性,发现磺酰胺和在它氮原子上取代响该类染料性能。