香港福瑞达发展有限公司

Chemical Name：

Sodium Metabisulfite

Synonyms：

Molecular Formula：

Na2S2O5

Molecular Weight：

190.09

CAS Number：

7681-57-4

EINECS Number：

231-673-0

Properties：

White or light yellow crystalline powder. Relative density 1.4, soluble in water, water solution is acidity, soluble in glycerin and slightly soluble in ethanol.

Quality Standards：

Items	Specification
purity	95%min.
Iron	0.005%max
Water insolubles	0.05%max
Heavy metal (as Pb)	0.002%max
As	0.0002%max
PH	4.0—4.6

Package：

IN 25KG PLASTIC WOVEN BAGS

Usage：

Mordant of printing and dyeing; Dechlorinate of textile after bleaching; Sulphonated agent and reducer of chemical industry and pharmacy; Bleach of paper pulp, bamboo and timber bleach of stap; Mineral-dressing of nonferrous metals Treatment agent of waste water; Rubber solidifying agent? Perfume industry is served as hydrocarbon perfume aldehyde. To molt dose and pliable dose and wearproof dose. The sensitize industry is served as the developing agent reductant and the protection of fixing bath dose, etc.

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