Sodium pyrosulfite 1.The Purity:97% 2.Sodium Metabisulphite(Tech&Food Grade) 3.Appearance:White/yellowish Crystal Powde

Sodium Metabisulphite 1.The Purity:97% 2.Sodium Metabisulphite(Tech&Food Grade) 3.Appearance:White/yellowish Crystal Powder

Sodium Metabisulfite  Description1.Product Name:Sodium metabisulfite 2.Molecular Formula Na2S2O53.Molecular Weight 190.10 4.CAS No 7681-57-45.Appearance: White or yellowish Crystal Powder 6.Synonyms: Sodium pyrosulfite; disodium disulphite; Sodium metabisulphite; Sodium disulphite; Sodium pyrosulphite; Sodium Disulfite7.HS Code: 28311000 Sodium Metabisulfite Specification

Item	Index
	Food Grade	Industry Grade
Purity(As Na2S2O5)	98.0%min	96.0%min
Sulfur Dioxide(SO2)	65.0%min	65.0%min
Arsenic(As)	0.0002%max	-
Heavy metals(As Pb)	0.0005%max	-
Selenium(Se)	0.001%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

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.

rubber grade Sodium pyrosulfite/sodium disulfite