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Sodium Metabisulfite

Sodium Metabisulfite

Synonyms Disodium Pyrosulfite; Sodium disulfite; Sodium Pyrosulfite

CAS Number: 7681-57-4 Molecular Formula: Na2S2O5 Molecular Weight: 190.095 g/mol

EC Number: 231-673-0 MDL Number: MFCD00167602

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SKU 02191438-CF
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Description

Product Description

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

Research Use Only (RUO). Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Specifications
SKU 02191438-CF
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.
Boiling Point Decomposes (NIOSH, 2016)
Density 1.4 (NIOSH, 2016)
EC Number 231-673-0
Format Crystalline powder
Grade ACS reagent grade
Hazard Statements H302-H318; Contact with acids liberates toxic gas.
Heavy Metals Pb ≤0.001%; Iron (Fe) ≤0.002%
Insoluble Matter ≤0.005%
Melting Point greater than 302° F (Decomposes) (NIOSH, 2016)
Molecular Formula Na2S2O5
Molecular Weight 190.095 g/mol
Personal Protective Equipment Dust mask , Eyeshields, Gloves
pH 4,0-5,5 (10 % aqueous solution)
Physical Appearance White Crystalline Powder
Product Families Description Sodium metabisulfite
Product Overview Sodium Metabisulfite
Purity ≥97.0%
RTECS Number UX8225000
Safety Symbol GHS05, GHS07
Solubility 54 % (NIOSH, 2016)
Storage and Handling Store at Room Temperature (15-30 °C); desiccate. Store Under Nitrogen.
Usage Statement Research Use Only (RUO). Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.