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| Place of Origin: | Hunan |
| Brand Name: | Kemsky |
| Certification: | ISO 9001,SGS |
| Model Number: | preservative sodium sulfite |
| Minimum Order Quantity: | 1 metric ton |
|---|---|
| Price: | usd 430 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: | SSA Sodium Sulfite | Other Name: | Anhydrous Sodium Sulphite |
|---|---|---|---|
| Usage: | Food Industry | Mocular: | Na2SO3 |
| HS CODE: | 28321000 | CAS NO: | 7681-57-4 |
| High Light: | sodium sulfite anhydrous,sodium sulfite preservative |
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SODIUM SULFITE ANHYDROUS
We prefer to build a long relations of cooperation,not short-term business.So,may we can not sure you the lowest price in China, but we can sure you can get the best quality stuff for the cheapest prices .
Specifications
1) Pruity 97% min
2) Good quality
3) SGS,BV,REACH
4) 25 kg net weight plastic woven bag
Usage:
Paper,chemical mechanical pulp, water treatment, dyes intermediates, fabric bleach, photographic imaging, artificial silk, leather, corrosion, stone carving, pharmaceutical synthesis, latex processing,mirror silvering,thiosulfate preparation and analysis of chemical reagents and so on.
Specification:
| Anhydyous sodium sulphite | ||||||
| English name | Anhydyous sodium sulphite | |||||
| Molecular formula | Na2SO3 | |||||
| Technical specifications | High purity grade | Refined grade | Photographic grade | Industrial grade | Industrial grade | Industrial grade |
| Sodium sulfite | Sodium sulfite | Sodium sulfite | High-class product | High-class product | First grade product | |
| Na2SO3 ≥ % | 98 | 98 | 97 | 98 | 97 | 96 |
| Fe ≤ % | 0.0005 | 0.002 | 0.005 | 0.003 | 0.003 | 0.005 |
| Water insoluble ≤ % | 0.005 | 0.01 | 0.05 | 0.02 | 0.02 | 0.03 |
| Free alkali ≤ % | 0.1 | 0.3 | 0.15 | 0.1 | 0.1 | 0.4 |
| Sodium sulfate ≤ % | 1.5 | 1.5 | — | 1.5 | 2.5 | — |
| Sodium chloride ≤ % | 0.005 | 0.02 | — | 0.01 | 0.1 | — |
| Heavy metal on Pb≤ % | 0.001 | 0.002 | 0.002 | — | — | — |
| As ≤ % | 0.0001 | 0.0005 | — | — | — | — |
| Sodium thiosulfate ≤% | 0.01 | 0.02 | 0.03 | — | — | — |
| Aqueous solution appearance | Qualified | Qualified | Qualified | — | — | — |
| Reaction of silver nitrate ammonia solution | — | — | Qualified | — | — | — |
Application:
It is used in dyeing industry as deoxidizer and bleaching agent for a variety of cotton fabric treating and scouring, which can prevent fabrics from local oxidation and deterioration of fibre strength. In photographic industry it is used as a reagent. In organic industry it is used as reducing agent in production of m-phenylenediamine, 25 - bared oxazolone, amino salicylic acid, etc. Textile industry uses it as a stabilizer for synthetic fibre. Other applications include various uses in paper mills, electronic industry, water treatment, etc.
Contact Person: Mrs. Kim Xie
Fax: Ningbo Keyuan Holdings Group
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