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Sodium Metabisulphite

Chemical Name	Sodium Metabisulphite
CAS Number	7681-57-4
Product Number	OC000015
Molecular Formula	Na2O5S2
Molecular Weight	190.1065

Appearance:White or light yellow crystalline powder

Main uses:

Food grade:
Bleach agent (e.g.candies, cake, bamboo shoots, etc)
Loose agent (e.g.bread, cracker etc)
Antiseptic and germicide (e.g.fruit juice, tinned food;brews, the cereals food is defended storage etc
Inhibitor and freshen agent (e.g.day lily, seafood, fruit and vegetable etc)

Industrial grade:

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 stape; Treatment agent of waste water
Rubber solidifying agent
Perfume industry is served as hydrocarbon perfume aldehyde
The hide profession employ to do 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 and so on; sewage treatment.

Packaging:in polythene plastic bag with a polypropylene overbag, paper-plastic composite bag, kraft bag, etc.

ITEM STANDARD TEST RESULT

Appearance White to slightly yellowish crystialline powder

Sodium Metabisulphite (Na2S2O5) % ≥ 97 98.10

SO2, % ≥ 65.0 66.56

Fe , % ≤ 0.002 0.0014

AS, % ≤ 0.0001 0.00009

PB, % ≤ 0.0005 0.00048

Insoluble matter in water, % ≤ 0.02 0.01

PH 4.4-4.8 4.45

Sodium Metabisulphite

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ITEM	STANDARD	TEST RESULT
Appearance	White to slightly yellowish crystialline powder
Sodium Metabisulphite (Na2S2O5) % ≥	97	98.10
SO2, % ≥	65.0	66.56
Fe , % ≤	0.002	0.0014
AS, % ≤	0.0001	0.00009
PB, % ≤	0.0005	0.00048
Insoluble matter in water, % ≤	0.02	0.01
PH	4.4-4.8	4.45