Sodium sulphate, white, odourless, have bitter crystallization or powder, hygroscopicity. The outline is colorless ... of dye is deepening.Sodium sulphate also called sodium sulfate, inorganic compounds, also known as anhydrous mirabilite, white, odourless, have bitter crystallization ... .The outline is colorless, transparent, and the crystallization of big or small crystal granularity.Mainly used for ...