Place of Origin: | Hunan |
Brand Name: | Kemsky |
Certification: | ISO 9001 |
Model Number: | tech grade Na2S2O5 97% purity |
Minimum Order Quantity: | 1 metric ton |
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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 Metabisulfite Tech Grade Na2S2O5 97% Purity | Other Name: | Sodium Pyrosultite Tech Grade Na2S2O5 97% Purity |
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Application: | Mordant Of Printing And Dyeing; Dechlorination Of Textile After Bleach | Mocular: | Na2S2O5 |
CAS No: | 7681-57-4 | EINECS No: | 231-673-0 |
High Light: | sodium metabisulfite preservative,sodium metabisulfite in water treatment |
sodium metabisulphite food grade and tech garde
sodium metabisulfit physical characteristics:
White or light-yellow crystalline powder, Specific gravity is 1.4. Its soluble in glycerine, Its soluble slightly in alcohol. It has acidity,and its solubility will become large while raising the temperatureand is less to dissolve in ethanol.
3.sodium metabisulfit Specification:
Index Content
Food grade Industrial grade
Purity ( As Na2S2O5) 98.0% min 97.0% 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
Purity ( As Na2S2O5) 98.0% min 96.0% min
4.sodium metabisulfit Packing:
25kg/pp bag or per customer's request
5.sodium metabisulfit 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.
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, 50
Molecular Formula : Na2S2O5
Molecule Weight : 190.12
Packing : External packing is PP woven bag, Internal packing is PE bag,25 kgs, 50 kgs, 1000 kgs, and 1250 kgs bag packing.
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.
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.
0kg/1000kg/1100kg/1200kg jumbo bag or as per the buyer's requirement.
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Specification for Pharmaceutical Grade and Photo Grade
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. |
Contact Person: Ms.xie
Tel: +8613975090964
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