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
