Quick Detail
Place of Origin
Brand Name
Kemsky
Model Number
smbs
HS-CODE
29-
Package & Delivery Lead Time
Package
25 kgs bag,1000 kgs big bag
Delivery Lead Time
5-8 days
Detailed Description
SODIUM METABISULFITE FOOD GRADE
- - - -
1.Grade | Food grade |
2.Purity | 97% |
3.Molecular formula | Na2S2O5 |
5. CAS No | 7681-57-4 |
6. HS CODE | 28321000 |
7. EINECS No | 231-673-0 |
- - - -
Nature:
white or light yellow crystalline powder , relative density is 1.4 . Soluble in
water (when20 C, 54g/100ml water; when 100 C, 81.7g/100ml water),
acidic aqueous solution. Soluble in glycerine, slightly soluble in ethanol.
Moisture easily decomposed, exposed in the air easily oxidized into
sulfate. Exposure to emit sulfur dioxide and acid generated the corresponding
salts. Heated to 150 C decomposition.
Usage:
Pharmaceutical industry for the production of chloroform, benzene, styrene
sulfone, and formaldehyde. Rubber industry as a coagulant. Bleached cotton
printing and dyeing industry as the dechlorination agent, cotton scouring agent.
Leather tanning industry for processing, make the leather soft, plump, tough,
waterproof, bending, wear and other properties. The chemical industry for the
production of vanillin hydroxyl, hydroxylamine hydrochloride and so on.
Sensitive industries such as reagent. The food industry as a bleaching agent,
preservatives, leavening agent, antioxidant, color agents and the insurance agent.
According to China GB2760-86 provides that: as a preservative for the wine, the
greatest use of 0.25g/kg; as bleaching agent for glucose, sugar, bamboo, rattan
and other mushrooms, no more than 0.45g/kg; residue (SO2 total), bamboo shoots,
mushrooms are not allowed more than 0.025k/kg.
Specification:
Sodium metabisulfite food grade
- - - -
Item | Chinese standard | Company standard |
GB1893-2008 |
Main content(Na2S2O5) | 96.5 | 97.5 |
Fe(As content Fe) | 0.003 | 0.0015 |
Clarity | Pass test | Clear |
Heavy metal content (Pb) | 0.0005 | 0.0002 |
Arsenic content (As) | 0.0001 | 0.0001 |
- - - -
Sodium metabisulfite industrial grade
- - - -
Item | Chinese standard | Company standard |
| HG/T2826-2008 | |
| Top-grade | First grade | |
Main content(Na2S2O5) | 96.5 | 95.0 | 97.0 |
Fe %( Fe) | 0.005 | 0.010 | 0.002 |
Water-Insoluble | 0.05 | 0.05 | 0.02 |
Arsenic(As) content | 0.0001 | / | 0.0001 |
- - - -
10. Packing : External packing is PP woven bag, Internal packing is PE bag,25 kgs, 50 kgs, 1000 kgs, and 1250 kgs bag packing.
11. Storage & defence: Stored in cool and dry place, avoid moisture and heat. No breakage, No mixed with oxidant and toxic matter. The storage period is 6 month since the production date. It should be transported by clean car, with covering matter, avoid rain.
0 likes
China [CN] 
Click enlarge Image