Sodium Metabisulphite

bleach agent (e.g.candies,cakes,bamboo shoots.etc); loose agent ......
Molecule formula: Na₂S₂O₅

Molecule weight: 190.10

CAS No.: 7681-57-4

Appearance: white powder

Specification of food grade

Item	index	index
Content(as  Na2S2O5)	≥97.5	≥95.0
Iron(as Fe)%	≤0.001	≤0.005
Clarify degree	clearly	A little turbid
Heavy metals(as Pb)	≤0.001	≤0.001
Arsenic(as As)	≤0.0002	≤0.0002

Main uses :bleach agent (e.g.candies,cakes,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)

Packaging:net 25kg/50kg/1000kilograms pp bag

Specification of Tech Grade

item	value
Content(as Na2S2O5)	≥97.0	≥96.0	≥94.0	≥92.5
Fe% (as Fe)%	≤0.0015	≤0.005	≤0.010	≤0.015
Water-insoluble%	≤0.01	≤0.05	≤0.05	≤0.10
Arsenic (as As)%	≤0.0001	≤0.0001	-	-

Main uses:

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 stapk;treatment agent of waste water;rubber solidifying agent perfume industry is served as hydrocarbon perfume aldehyde .the hide profession employ to do molt dose,the sensitize industry is served as the developing agent reductant and the protection of fixing bath dose and so on ;sewage treatment.

Resource:

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