Sodium Metabisulfite Powder
Sodium Metabisulfite
Standard: GB1886.7-2015
Item | Superior Grade | First Grade |
Content（as Na2S2O5计），% | ≥ 96.5 | ≥ 95 |
Iron content（as Fe）, % | ≤ 0.005 | ≤ 0.01 |
Water insoluble | ≤ 0.05 | ≤ 0.05 |
Arsenic content (as As), % | ≤ 0.0001 | — |
Usage of Sodium Metabisulfite(Sodium Metabisulphite)
A mordant in painting and dying
Dechlorination agent for fabric after bleaching
Chemical and pharmaceutical reducing agents and sulfonating agents
Bleaching agent for bamboo, wood and paper fibers
Mineral separation agent for Nonferrous metal
Treatment agent for waste water
Rubber solidifying agent
Mix in local anesthetic ingredients
Used in photography
At high concentrations, it can be used to remove traces of trees
Can be used as an adjunct in tests for checking sickle cell anemia
Used as a source of SO2 in wine because it is important as an antioxidant
For the deposition of gold from auric acid.
whitening agent in the production of coconut cream
Used as a source of SO2 in cyanide destruction that arises in the process of cyanidation of gold.
Packing of Sodium Metabisulfite: 25kgs/bag
Storage of Sodium Metabisulfite: Keep away from sunlight and moisture, store in ventilated dry place.