Property: white or light yellow crystalline powder or small crystal, with SO2 odor,Sg 1.4. Use: Used in drug, food, ferment, ru

10PPM/5PPM
Na2S(%)	60.0Min
Na2CO3(%)	2.0Max
Water Insoluble(%)	0.2Max
Fe(%)	0.001Max/0.0005Max

sodium sulphide flakes