FOOD ADDITIVE SODIUM METABISULFITE
|sodium metabisulfite food grade||Item||Value|
|Main Assay||as NA2S2O5 %||≥96.0||≥97.0|
|Water insoluble matter||%||≤0.04||≤0.04|
Bleacher (Sweet, pastry, water-soaked bamboo slices, etc.);
loosening agent (bread, biscuit, etc.); corrosion resistance
antiseptic (fruit juice, can, brewing, grain storage, etc.);
antioxygen antistaling agent (acupuncture needle sprout, sea food,
garden stuff, etc.)
Appearance: white crystal powder.
Packing: polypropylene weaving bag, paper plastic complex bag and kraft
lined with polyethylene plastic bag.
Net weight: 25, 50, 1000 kilograms per bag or according to demands from
Sodium Metabisulfite is also named Sodium Pyrosulfite, Sodium
Metabisulfite is white or slight yellow crystalline powder, with
strong smell of SO2, the proportion of 1.4, soluble in water,
aqueous solution of Sodium Metabisulfite is acidic, Sodium
Metabisulfite contacts with strong acids, released SO2 and
generates sodium sulfate, commonly known as Glauber's salt. For a
long time in the air, Sodium Metabisulfite can be oxidized into
Na2S2O6, so Sodium Metabisulfite can not be stored for a long time.
Above 150 degrees Celsius, Sodium Metabisulfite can decompose of
SO2. Soluble in water and glycerin, slightly soluble in ethanol.
Soluble in water, Sodium Metabisulfite generates into stable sodium
bisulfite, pH under 1% aqueous solution ranged from 4.0 to 5.5.
Sodium Metabisulfite Description
Sodium Metabisulfite products are classified into Sodium
Metabisulfite food grade and Sodium Metabisulfite industrial grade,
with different quality index. Industrial grade Sodium Metabisulfite
is mainly used in chemical, pharmaceutical, rubber, leather,
printing and dyeing, and other industries. Food grade Sodium
Metabisulfite is used in food industry. In food industry, in order
to improve the food color, smell, taste and quality, as well as the
demand to preserve, fresh and processing technology, food additives
are often added. Sodium Metabisulfite is a kind of food additive,
which is used as a preservative, antioxidant in food processing.
Industrial grade Sodium Metabisulfite has a wide uses range. In
pharmaceutical industry Sodium Metabisulfite is used for
purification in chloroform, benzene propyl sulfone and benzaldehyde
production; Sodium Metabisulfite is used for coagulant in rubber
industry; Sodium Metabisulfite is used for antichlor in cotton
bleaching, Cotton mill auxiliary and mordant in printing and dyeing
industry; Sodium Metabisulfite is used for leather processing in
tanning industry, Sodium Metabisulfite can make leather soft, plump
and tough, and make leather own waterproof, anti folding, wear
resistance properties; Sodium Metabisulfite can be used for the
production of Hydroxyvanilline and Hydroxylamine Hydrochloride in
chemical industry; Sodium Metabisulfite can be used as developer in