Other Name: Benzenesulfinic Acid Zinc Salt Dihydrate; Benzenesulfinic Acid Zinc Salt; Zinc Benzenesulfinate; BM; Blowing Agent Activator ZBS CAS No: 24308-84-7 Molecular Formula: C12H10O4S2Zn·2H2O Product Usage: It's used for lubricant stuffing, flame retardants and AC foaming agent, Activator could evidently improve product performance. This product non-toxic, do not belong to dangerous goods. Appearance:WhitePowder Purity:98 %min Free Water:0.5 %max MeltingPoint:216-222 °C Ash:20-28 %