Origin	China
CAS No.	7681-57-4
Purity	97%

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:

Standard Specifications: HG/T 2826-2008 

Main content(Na2S2O5), %: 95.0 min

Iron content (Fe), %: 0.01 max

Water insoluble, %: 0.05 max

Food Grade

Standard Specifications: GB1893-2008

Main content(Na2S2O5), %: 97 min

Iron content (Fe), %: 0.003 max

Clarity Pass test

Heavy metal(in pb), % 0.0005 max

Arsenic(As), % 0.000 1 max

Packing and Stuffing:

25, 50, 1000, 1100kg/bag or customized in polypropylene woven bag lined with polyethylene plastic bag or plastic and paper compound bag, Kraft bag, etc, 25 MT per 20ft container

Applications:

Mainly used in food industry, leather industry, flotation depressant, etc.