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Sodium Metabisulfite
Sodium Metabisulfite

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Sodium Metabisulfite
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Product: Sodium Metabisulfite
High Quality
Earliest Shipment
Competitive price
Professional Service

 

 

Sodium metabisulfite or sodium pyrosulfite (IUPAC spelling; Br. E. sodium metabisulphite or sodium pyrosulphite) is an inorganic compound of chemical formula Na2S2O5. The substance is sometimes referred to as disodium (metabisulfite). It is used as a disinfectant, antioxidant and preservative agent.

 

 

Sodium metabisulfiteIdentifiersPropertiesHazardsRelated compounds
Other names[hide]Sodium pyrosulfite
Sodium disulfite
CAS number7681-57-4 Y
PubChem24346
EC number231-673-0
RTECS numberUX8225000
Molecular formulaNa2S2O5, Na-O-(S=O)-O-(S=O)-O-Na
Molar mass190.107 g/mol
Appearancewhite powder
Density1.48 g/cm3
Melting point

>170 °C (begins at 150 °C)

Solubility in water54 g/100 ml
MSDSMallinckrodt MSDS
EU Index016-063-00-2
EU classificationHarmful (Xn)
Irritant (Xi)
R-phrasesR22 R31 R41
S-phrases(S2) S26 S39 S46
NFPA 704020
Other anionsSodium sulfite
Sodium bisulfite
Other cationsPotassium metabisulfite
Related compoundsSodium dithionite
Sodium thiosulfate

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