中文版 ENGLISH عربي
Yigyooly Chemicals Co., Ltd.
Yigyooly Chemicals Co., Ltd.
Products
Sodium Metabisulphite
Molecular formula Na2S2O5
Molecular weight 190.10
Executive standard HG/T2826-2008
Packing 25KGS PP/PE bags or 1000kg/1350kgs/jumbo bags
Uses It is mainly used as bleaching agent, mordant, reducing agent and rubber coagulant; In the pharmaceutical industry, it is used to produce chloroform, phenylpropanesulfone and benzaldehyde; rubber Rubber industry as coagulant; In printing and dyeing industry, it is used as dechlorinating agent and scouring agent for cotton cloth after bleaching; In leather industry, it can make leather soft, plump, tough, waterproof and wear-resistant; In chemical industry, it is used to produce hydroxyvanillin, hydroxylamine hydrochloride, etc.; in photosensitive industry, it is used as developer, etc.
Features

in dry and ventilated warehouse Keep container tightly closed, store in cool, dry and well ventilated warehouse, avoid direct sun light and in compatible chemicals.

Quality index
Item Tech grade Food grade
Appearance White to yellowish crystalline powder White to yellowish crystalline powder
Odor An odor of sulfur dioxide An odor of sulfur dioxide
Purity(Na2S2O5) 97.0% min 97.0% min
SO2 65.3% min 65.3% min
Na2SO4 3.0% max 3.0% max
Iron(Fe) 50.0ppm max 30.0ppm max
Lead(Pb) 20.0ppm max 5.0ppm max
Arsenic(As) 1.0ppm max 1.0ppm max
Insolubility 0.05% max 0.05% max
PH 4.0-4.8 4.0-4.8