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Sodium Bisulfite

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Company: Choice Chemicals Ltd.

Address: Centre of City, No.235 Wuyi Road, Furong District, Changsha, Hunan Province 410011, P.R.China

Tel: +86 731 89856736/92/93

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Sodium Bisulfite

Sodium Bisulfite

Information

Appearance

White crystal powder

CAS No.

7631-90-5

EINECS

231-548-0

H.S.CODE

2832100000

Molecular Formula

NaHSO3

Quality Standard

Item

Chinese standard
HG/T3814-2006

Company standard

Main content (in SO2) %

64 ~ 67

64 ~ 67

Water-Insoluble ≤ %

0.03

≤0.01

Chloride(Cl) ≤ %

0.05

≤0.03

Iron(Fe) ≤ %

0.004

≤0.001

Heavy metal(Pb)≤%

0.001

≤0.0001

Arsenic(As) ≤ %

0.0002

≤0.0001

PH Value(500g/L solution)

4.0 ~ 5.0

4.0 ~ 5.0

Application
Sodium bisulfite is used for the bleaching of cotton fabrics and organic materials.
And used as a reducing agent in dyestuff, papermaking, tanning, chemical synthesis and other industries.
In the pharmaceutical industry, it is applied to produce intermediates of metamizole and aminopyrine.
Serves as bleaching agent, preservative, and antioxidant food grade products.
And used as a plating additive in the treatment of chromium-containing waste water.
Packaging & Transportation

Packing: Polypropylene weaving bag lined with polyethylene plastic bag, paper plastic compound bag, etc.
Net weight: 25/50/1000kg bag or upon clients' request

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