Specification :

Description
It is white or light yellow crystal powder.

General Information
Chemical Name: Sodium metabisulphite
Molecular Formula: Na2S2O5
Molecular weight: 190.10
CAS Number: 7681-57-4
UN Number: N/ A
Hazard Class: N/ A
HS Code: 2832.1000
Origin: China

Industry grade specification: HG/ T 2826-2008
Main content ( Na2S2O5) , % : 95.0 min
Iron content ( Fe) , % : 0.010 max
Water insoluble, % : 0.05 max

Food grade specification: GB1893-2008
Main content ( Na2S2O5) , % : 97.0 min
Iron content ( Fe) , % : 0.003 max
Clarity: Pass test
Heavy metal ( in Pb) , % : 0.000 5 max
Arsenic ( As) , % : 0.000 1 max

Packing and Stuffing
25, 50, 1000, 1100, 1200kg/ bag or customized in polypropylene woven bag lined with polyethylene plastic bag or plastic and paper compound bag, Kraft bag. Normally the stuffing is 20-25 MT per 20ft container

Applications
Mainly used in mining, food, leather industry, flotation depressant, and etc.
Last update: Dec 16, 2009