... .: 28301090ALIAS: Sodium Hydrosulphide ,Sodium Hydrogen Sulphide, Sodium Hydrogen Sulfide, Sodium Sulfhydrate, Sodium Bisulphide.Predominance:mainly used by mill run, pesticide, dye ,leather production and organic compound ... . compared with other company, high purity, less impurity, not easy to be intenerated,especially less iron , sodium sulfide, sodium carbonate ...