Sodium metabisulfite

Key Features and Details

Sodium Metabisulfite

SYNONYMS: Disodium Pyrosulfite; Sodium disulfite; Sodium Pyrosulfite
CAS: # 7681-57-4
MOLECULAR WEIGHT: 190.095 g/mol
EC No: 231-673-0
MDL No: MFCD00167602
SKU 02191438-CF Categories , , Tag

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Sodium Metabisulfite Application Notes Sodium metabisulfite is used as an active ingredient in campden tablets, as a cleaning agent for potable water reverse osmosis membranes, as a preservative and an antioxidant in food. It also acts as a corrosion inhibitor in oil and gas industry, as a bleaching agent in the production of coconut cream, as the source of sulfur dioxide and in the destruction of cyanide in commercial gold cyanidation processes. It is utilized in the precipitation of gold from auric acid as well as in the waste water treatment to remove hexavaent chromium as trivalent chromium by precipitation after reduction. Further, it is used in photography. In addition, it plays as an oxygen scavenger to eliminate the dissolved oxygen in wastewater and in pipes. Usage Statement Unless specified otherwise, MP Biomedical's products are for research or further manufacturing use only, not for direct human use. For more information, please contact our customer service department.
SKU: 02191438-CF
Base Catalog Number: 191438
Alternate Names: Disodium Pyrosulfite; Sodium disulfite; Sodium Pyrosulfite
Boiling Point : Decomposes (NIOSH, 2016)
CAS : # 7681-57-4
Density : 1.4 (NIOSH, 2016)
EC No : 231-673-0
Format : Crystalline powder
Grade : ACS
Hazard Statements : H302-H318; Contact with acids liberates toxic gas.
Insoluble Matter : =0.005%
MDL No : MFCD00167602
Melting Point : greater than 302° F (Decomposes) (NIOSH, 2016)
Molecular Formula : Na2S2O5
Molecular Weight : 190.095 g/mol
pH : 4,0-5,5 (10 % aqueous solution)
PPE : Dust mask , Eyeshields, Gloves
Purity : =97.0%
RTECS No : UX8225000
Safety Symbol : GHS05, GHS07
Solubility : 54 % (NIOSH, 2016)

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