Pure CAS 7681-57-4 Preservative Sodium Metabisulphite Powder

Basic Information
Place of Origin: Hunan, China
Brand Name: Na2S2O5
Model Number: XSC-SINCERE
Minimum Order Quantity: 25 Ton/20'
Price: Negotiable
Packaging Details: in the woven bag lined with plastic, net wt. 25kgs or 1000kgs bags.
Delivery Time: 20 Days
Payment Terms: L/C; D/P; T/T
Supply Ability: 20000 Ton/per year
Detail Information
Molecular Weight: 190.1065 Form: White Powder
Purity: 96.5% Min Smell: Sulphorous
Application: Water Purifier, Gas Purification Agent,mordant,herbicide; Pesticides. PH-Value: (50 G/l) At 20 °C: 3.5-5.0
Formula: Na2S2O5 Sensitivity: Air & Moisture Sensitive
Density: 1.48 Merck : 14,8638
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Pure 7681-57-4


CAS 7681-57-4


Sodium Metabisulphite Powder

Product Description

96.5% Min Molecular Weight :190.1065 Preservative Sodium Metabisulphite Powder Used For Pesticides




Formula Na2S2O5
Molecular Weight 190.1065
CAS 7681-57-4
HS Code 2832.1000.00
Appearance White or Light Brown Powder
Smell Sulphorous
pH-value (50 g/l) at 20 °C 3,5-5,0 Change in condition
Melting range >300 °C
Solubility in / Miscibility with Water at 20 °C 650 g/l
Sensitivity Air & Moisture Sensitive
Density 1.48
Merck 14,8638



Sodium metabisulfite is more reductive than sulfite, and its action is similar to that of sodium sulfite. It can be used for canning fruit, biscuit, sugar, rock sugar, caramel, candy, glucose, liquid glucose, bamboo shoots, mushroom and canned mushroom. The maximum usage is 0.45g/kg. Less than 0.05/kg (SO2) was found in the concentration of honey Chemicalbook, bamboo shoots, mushrooms and canned mushrooms, grapes and blackcurn. The residual amount of biscuits, sugar, vermicilla and other varieties was less than 0.1g/kg. The residue of liquid glucose shall not exceed 0.2g/kg.



Item Standard
Content(Na2S2O5) 96.5% MIN
Fe 30ppm MAX
Water insoluble 0.05%MAX
As 0.0001% MAX


Pure CAS 7681-57-4 Preservative Sodium Metabisulphite Powder 0Pure CAS 7681-57-4 Preservative Sodium Metabisulphite Powder 1

Contact Details

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