Sodium Hydrosulphite
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Product Description
Product
Sodium Hydrosulphite
CAS
7775-14-6
Formula
NaO2SSO2Na
Synonym
Disodium dithionate; Dithionous acid, sodium salt (1:2); Sodium dithionite
Typical Product Specifications
Sensoric
Free-flowing white crystalline powder
Odor
None or slight scent of sulfur dioxide
Purity
(Na2S2O4): 88% min --- 90% min
Solubility (grams/100 g water) at 100°C
Water insoluble 0.1 % Max --- 0.1 % Max
Na2S2O3 (sodium thiosulfate)
0.8% Max
Na2S2O5 (sodium metabisulfite)
1 - 5% Max
NaHSO3 (sodium bisulfite)
0.1% Max
Na2CO3 (sodium carbonate)
1 – 5% max
HCOONa (sodium formate)
0.05% max
Zinc
0.001% Max
Iron
0.005% Max
Chemical Structure
Notes
Package: 25kg/50kg/100kg net in iron drums with double inner poly
90% minimum Assay also available
Use: REDUCING,
Class
Industry
Functions
Sodium Hydrosulphite
Product Description
Product
Sodium Hydrosulphite
CAS
7775-14-6
Formula
NaO2SSO2Na
Synonym
Disodium dithionate; Dithionous acid, sodium salt (1:2); Sodium dithionite
Typical Product Specifications
Sensoric
Free-flowing white crystalline powder
Odor
None or slight scent of sulfur dioxide
Purity
(Na2S2O4): 88% min --- 90% min
Solubility (grams/100 g water) at 100°C
Water insoluble 0.1 % Max --- 0.1 % Max
Na2S2O3 (sodium thiosulfate)
0.8% Max
Na2S2O5 (sodium metabisulfite)
1 - 5% Max
NaHSO3 (sodium bisulfite)
0.1% Max
Na2CO3 (sodium carbonate)
1 – 5% max
HCOONa (sodium formate)
0.05% max
Zinc
0.001% Max
Iron
0.005% Max
Chemical Structure
Notes
Package: 25kg/50kg/100kg net in iron drums with double inner poly
90% minimum Assay also available
Use: REDUCING,
Class
Industry
Functions
