Sodium Metabisulphite - Cas 7681-57-4, Einecs 231-673-0 | High Purity 96.5% Min, Versatile Industrial And Food Grade Applications

We export, distribute and supply Sodium Metabisulphite to our customers in Changsha, Hunan, China.

- Product Identification
CAS No. : 7681-57-4
EINECS No. : 231-673-0
H.S. Code : 2832.1000
Formula : Na2S2O5
Molecular Weight : 190.10
Synonyms : Dinatriumdisulfit; Disulfito De Disodio; Disulfite De Disodium; Disodium Disulfite; Disodium Salt Pyrosulfurous Acid; Disulfurous Acid, Disodium Salt; Pyrosulfurous Acid, Disodium Salt; Sodium Metabisulfite; Sodium Disulfite; Sodium Pyrosulfite;

- Physical And Chemical Properties
Physical State : White or yellowish crystal powder
Melting Point : 150 C (Decomposes)
Specific Gravity : 1.48
Solubility in water : 54 g/100ml (20 oC); 81.7 g/100ml (100 oC)
NFPA Ratings : Health: 2; Flammability: 0; Reactivity: 0
Stability : Stable under ordinary conditions

- Applications
i Industrial Grade :
- Printing dyeing mordant, Dechlorinating agent for washed fabric.
- Medical deoxidizer and sulfonating agent.
- Bleaching agent of bamboo, wood and paper fiber.
- Non-ferrous mineral separation agent.
- Waste water disposing agent.
- Rubber coagulator.
- Alkyl spice aldehyde in spice industry.
- Depilating agent, softening agent and anti-wear agent in leather industry.
- Reducer of developer and protective agent of fixative in sensitization industry.
i Food Grade :
- Bleaching agent ( Sugar, Pastry, Water-soaked bamboo slices, Mushrooms, etc ).
- Loosening agent ( Bread, Biscuit, etc ).