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Audited Supplier Hot sale sodium metabisulphite 97% with good price
Sodium metabisulfite is white or yellow crystalline powder or small crystals, with a strong smell of SO2, the aqueous solution is acidic, and strong acid contact releases SO2 and generates the corresponding salts, long in the air, it is oxidized into Na2S2O6, so the product can not be long.
In food processing as a preservative, bleach, loose agent. Industrial sodium sulfite for printing and dyeing, organic synthesis, printing, tanning, pharmaceutical and other departments; Sodium metabisulfite is used in the chemical and pharmaceutical industries for the production of insurance powder, sulfamedimethyrimidine, caprolactam and chloroform, phenylpropanone and benzene Chemicalbook formaldehyde purification. Used in the photographic industry as a fixative ingredient. The spice industry is used to produce vanillin. Used as preservative in brewing industry, rubber coagulant and dechlorination agent after cotton bleaching. Organic intermediates, dyes, leather used as reducing agents used in electroplating industry, oilfield wastewater treatment and used as mineral processing agents in mines.
|
ITEM |
TEST RESULT |
|
Sodium Metabisulphite (Na2S2O5) % |
97.21 |
|
SO2 % ≥ |
65 |
|
Fe % ≤ |
0.002 |
|
Clarity |
clear |
|
Insoluble matter in nitric acid% ≤ |
0.009 |
|
AS% |
<0.00009 |
|
Phosphoric acid test ≤ |
4.2 |
|
Appearance |
White to slightly yellowish crystialline powder |
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