Sodium Metabisulfite

Brand:aa

Product detail:

 Sodium Metabisulfite

 

 

physical characteristics:White or light-yellow crystalline powder, Specific gravity is 1.4. Its soluble in glycerine, Its soluble slightly in alcohol. It has acidity,and its solubility will become large while raising the temperature and is less to dissolve in ethanol.

 

 

 

Specification:

 

Index	Content
	Food grade	Industrial grade
Purity ( As Na2S2O5)	98.0% min	97.0% min
Sulfur Dioxide( SO2)	65.0% min	65.0% min
Arsenic ( As )	0.0002% max	-
Heavy metals ( As Pb )	0.0005% max	-
Selenium (Se )	0.0005% max	-
Iron (Fe)	0.001% max	0.002% max
Water insoluble	0.02% max	0.05% max
PH value :	4.0-4.8	4.0-4.8
Purity ( As Na2S2O5)	98.0% min	96.0% min

 

Packing:25kg/pp bag or per customer's request

 

Application:

 

(1) 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).

 

(2) Industry 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 Stap; Treatment agent of waste water; Rubber solidifying agent Perfume industry is served as hydro carbon perfume aldehyde
The hide profession employ to do to molt dose and pliable dose and wearproof dose; sewage treatment, and so on .

 

(3) Pharmaceutical Grade: In chemical synthesis in the production of acrylic fibre, vitamin K, vitamin A, pharmaceutical intermediates, etc.

 

(4) Photo Grade: The sensitize industry is served as the developing agent reductant and the protection of fixing bath dose.