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SODIUM METABISULPHITE IP
Sodium pyrosulphite; Sodium Disulphite
MSDS
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COAs
Packings
1000 g
(01000)
5000 g
(05000)
25 Kg
(0025K)
Print friendly version
Article No.
IS007
Grade
IP
Purity
95%
CAS No.
7681-57-4
Molecular Formula
Na
2
S
2
O
5
Molecular Weight
190.10
H.S. Code
2832.1090
Shelf Life
Refer COA
Specifications
Description
Colourless, prismatic crystals or a white or creamy white powder
Solubility
Freely soluble in water, slightly soluble in ethanol (95%)
Identification
-
Identification 'A'
Solution should give reaction (A) of sodium salts
Identification 'B'
The solution should be colorless and should give reaction of sulphates
pH
3.5 – 5.0
Arsenic
NMT 4 ppm
Iron
NMT 40 ppm
Thiosulphate
Not more than a faint opalescence should produced
Assay
NLT 95.0% and NMT 100.5% of Na2S2O5
Safety Information and Hazard Symbols
Symbol: GHS05, GHS07
Signal Word: Danger
Hazardous Statement: H302-H318
Precaution Statement: P280-P301+P312-P305+P351+P338
Revision Date:
29-Jul-2026
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SODIUM METABISULPHITE