 |
| Place of Origin: | Hunan |
| Brand Name: | Kemsky |
| Certification: | ISO 9001 |
| Model Number: | smbs tech grade So2 65% purity |
| Minimum Order Quantity: | 1 metric ton |
|---|---|
| Price: | usd 280-320 per metric ton |
| Packaging Details: | 25 kgs bag,1000 kgs big bag |
| Delivery Time: | 5-8 days |
| Payment Terms: | T/T , L/C |
| Supply Ability: | 3000 tons per month |
| Name: | Sodium Metabisulphite Tech Grade So2 65% Purity | Other Name: | Sodium Pyrosultite Tech Grade So2 65% Purity |
|---|---|---|---|
| Situation: | Dry White Crystalline Powder | Shelf Life: | 180 Days |
| Usage: | Sulphonated Agent And Reducer Of Chemical Industry | Mocular: | Na2S2O5 |
| High Light: | sodium metabisulfite in water treatment,sodium metabisulphite food grade |
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Food Grade and Industry Grade sodium metabisulphite
Specification
| Sodium Metabisulphite 97.5% min | |||
| Main content | Based on Na2S2O5 | 97.5% min | 98% |
| Water Insoluble | 0.05% max | 0.03% | |
| Heavy metals | Based on Pb | 0.005% max | <0.005% |
| Fe | 0.005% max | <0.005% | |
| As | 0.0001% max | <0.0001% | |
| Remarks: QUALIFIED(GB 1893-2008 and HG/T 2826-2008 standard) | |||
1 ton Jumbo bag/ 1000 Pounds bag
G.W.: 1.000 ton/ 1000 pounds
N.W.: 1.003 ton/ 1002 pounds
Pkg remark: can be customized.
Q'ty/20': 20
Feature: lighter to carry, suitable for bulk.
Recommend
G.W.: 25.0 kg N.W.: 25.1 kg Q'ty/20': > 20
PP duplex bag Feature: cost lower
PE duplex bag
Feature: high-strenght, sift-proof, anti-static, environmentally friendly, save space.Recommend
Kraft valve bag
Feature: a high-tech packaging technology from European, efficiency, cost low, recycling, tear resistant, antiseize. Recommend
G.W.: 25kg*40
N.W.: 1.019 ton
Feature: high-strenght, sift-proof, easy carry, cost more
Q'ty/20': 20
Specification For Food Grade and Industry Grade sodium metabisulphite :
| Item | Quality Index | |
| Food Grade | Industry Grade | |
| Purity ( As Na2S2O5) | 98.0% min | 96.0% min |
| Sulfur Dioxide( SO2) | 65.0% min | 65.0% min |
| Arsenic ( As ) | 0.0002% max | - |
| Heavy metals ( As Pb ) | 0.0005% max | - |
| Selenium (Se ) | 0.0005% max | - |
| Iron (Fe) | 0.001% max | 0.002% max |
| Water insoluble | 0.02% max | 0.05% max |
| PH value : | 4.0-4.8 | 4.0-4.8 |
| Remark : | Conformed with FCC V and E 223 Standard | |
Specification for Pharmaceutical Grade and Photo Grade
| Item | Quality Index | |
| Pharmaceutical Grade | Photo Grade | |
| Purity ( As Na2S2O5) | 98.0% min | 98.0% min |
| Sulfur Dioxide( SO2) | 65.0% min | 65.0% min |
| Thiosulphate ( As S2O3) : | 0.05 % max | 0.05% max |
| Chloride ( As CL-) : | 30 ppm max | 50ppm max |
| Arsenic ( As ) : | 1ppm max | 1ppm max |
| Lead ( Pb ) : | 1 ppm max | 2ppm max |
| Copper (Cu) : | 1 ppm max | 1ppm max |
| Iron (Fe ) : | 5 ppm max | 5ppm max |
| Mercury (Hg) : | 0.1ppm max | 1ppm max |
| Chromium (Cr) : | 1 ppm max | - |
| Selenium (Se ) : | 1 ppm max | 5ppm max |
| Zinc (Zn) | 1 ppm max | 1ppm max |
| Cadmium (Cd ) | 1ppm max | - |
| Nickel (Ni) | 1ppm max | - |
| Na2SO3 + Na2SO4 | 1.5% max | - |
| PH value : | 4.0-4.8 | 4.0-4.8 |
| Remark : | Conformed with USP standard | |
Application:
(1) Food Grade: Bleach agent (e.g. candies, cake, bamboo shoots, etc); Loose agent (e.g. bread, cracker etc); Antiseptic and germicide (e.g. fruit juice, tinned food, brews, the cereals food is defended storage etc); Inhibitor and freshen agent (e.g. day lily, seafood, fruit and vegetable etc).
(2) Industry Grade: Mordant of printing and dyeing; Dechlorinate of textile after bleaching; Sulphonated agent and reducer of chemical industry and pharmacy; Bleach of paper pulp, bamboo and timber bleach of Stap; Treatment agent of waste water; Rubber solidifying agent Perfume industry is served as hydro carbon perfume aldehyde
The hide profession employ to do to molt dose and pliable dose and wearproof dose; sewage treatment, and so on .
(3) Pharmaceutical Grade: In chemical synthesis in the production of acrylic fibre, vitamin K, vitamin A, pharmaceutical intermediates, etc.
(4) Photo Grade: The sensitize industry is served as the developing agent reductant and the protection of fixing bath dose.
Property: white or light yellow crystal powder, a strong smell of sulfur dioxide,relative density is 1.4, easy to dissolve in water and glycerin, water solution. It has acidity,and its solubility will become large while raising the temperature and is less to dissolve in ethanol.
Molecular Formula : Na2S2O5
Molecule Weight : 190.12
CAS NO .: 7681-57-4
Appearance : White Free Flowing Fine Crystal or Powder
Packing: Packed in 25kg plastic woven bag, 25kg Kraft paper bag, 25kg PE bag, 500kg/1000kg/1100kg/1200kg jumbo bag or as per the buyer's requirement.
Storage: Store the product in a dry and cool place
Contact Person: Ms.xie
Tel: +8613975090964
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