Sell Sodium Metabisulfite

Description

1. Properties:White or yellow powder, wet decomposition, exposure to air oxidation, and acid exposure to emit sulfur dioxide, and its aqueous solution is acidic.
2. Usage:This product can be used as food additives, preservatives, bleaching agents, reducing agents, rubber coagulant, processing agents, developers, electroplating wastewater treatment agent, scouring agent printing and dyeing  industry, cement and oil additives, etc.
3. Packing:*5kg/bag, *0kg/bag,
4. Product Standard: GBl*******8 
5. Specifications:
Main content(by Na2S2O5): *5.0%min.
Fe: 0.**5%max.
Heavy metal(by Pb): 0.**1%max.
Arsenic (As): 0.***2%max.
Insoluble material: 0.**5%max.
Ph value: 4.**4.6
Clarity: A little turbid
Cl: 0.*8ppm