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| Place of Origin: | Hunan |
| Brand Name: | OEM |
| Certification: | SGS,ISO 9001 |
| Model Number: | sodium pyrosulfite-m |
| Minimum Order Quantity: | 1 metric ton |
|---|---|
| Price: | usd 300 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: | Mordant In Dyeing Industry Sodium Pyrosulfite | Other Name: | Mordant In Dyeing Industry Sodium Metabisulfite |
|---|---|---|---|
| Grade: | Tech Grade And Food Grade, First Grade | Usage: | Mordant Chemical In Dyeing Industry |
| Packing: | Paper Bag Or As Required | Mocular: | Na2S2O5 |
| High Light: | smbs sodium metabisulfite,sodium meta bi sulphate |
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SODIUM PYROSULFITE/SODIUM METABISULFITE
Specification For Food Grade and Industry Grade
| Item | 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 |
Factory Supply make sodium metabisulfite
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);
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 piable dose and wearproof dose; sewage treatment, and so on.
3). Pharmaceutical grade: in chemical synthesis in the production of acrylic fibre, vitamin k, vitmin A, pharmaceutical intermediates, etc.
4). Photo grade: the sensitize industry is served as the developing agent reductant and the protection of fixing bath dose.
Quality:
ITEM |
QUALITY INDEX |
| Result | |
| Content of Na2S2O5 (calculated by dry base) % |
97.2% |
| Content of SO2 | 65% |
| Content of chloride(NaCl) (calculated by dry base) % |
0.1 |
| ARSENIC | 0.0001 |
| Content of insolubles in water (calculated by dry base) % |
0.017 |
| Moisture % | 1.0 |
| Heavy Metal(AS Pb) | 0.004 |
| Iron(Fe) | 0.0009 |
| PH Value | 4.5 |
| Appearance of product | White fine crystal with slightly yellowish |
| Packing | 25kg/bag, polywoven plastic bag outer , and PE film bag inner |
| Result | FIRST QUALITY |
| Remark |
Appearance: white free flowing fine crystal or powder.
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.
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.
The details of the product as follow:
Sodium Metabisulfite
Molecular Formula: Na2S2O5
Molecule Weight: 190.12
CAS NO.:7681-57-4
EC:231-673-0
UN: 2693
HS:28321000
Storage: store the products in dry and cool place.
Product Description
We are a main supplier of 98% Sodium Metabisulfite in China. We can supply you 98% Sodium Metabisulfite with competitive price.
Contact Person: Ms.xie
Tel: +8613975090964
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