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| Place of Origin: | Hunan |
| Brand Name: | Kemsky |
| Certification: | ISO 9001 |
| Model Number: | 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: | Antioxidant Sodium Sulfite SSA | Other Name: | Antioxidant Anhydrous Sodium Sulphite |
|---|---|---|---|
| Situation: | Dry Powder Crystalline | Grade: | Food Grade |
| Usage: | Food Antioxidant | Packing: | 25 Kgs |
| Highlight: | sodium sulfite anhydrous,sodium sulfite oxygen scavenger |
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SODIUM SULFITE ANHYDROUS
Anhydrous sodium sulfite, sodium sulfate, sodium sulfite supply
| ITEM | SUPER | FIRST | QUALIFIED |
| PURITY (Na2SO3) | 97.0%MIN. | 96% MIN. | . 93.0%MIN. |
| Fe | 0.003%MAX. | 0.005%MAX. | 0.02%max |
| WATER INSOLUBLES | 0.02%MAX | 0.03% MAX. | 0.05%MAX. |
| FREE ALKAL | 0.10%MAX | . 0.40% MAX. | 0.60%MAX. |
| NaCL | 0.10%MAX. | - | - |
| Na2SO4 | 2.5%MAX. | - | - |
Sodium sulfite
Other names: Sodium sulfite anhydrous; Sodium sulphite; anhydrous sodium sulfite
CAS number: 7757-83-7
EINECS number: 231-821-4
Molecular formula: Na2SO3
Molecular weight: 126
Density: 2.633
Water-soluble: 23 g / 100 mL (20 °C)
Characters: colorless single inclined crystals.
The relative density of 1.561
Solubility: soluble in water, its water solution is alkaline reaction; Soluble in ethanol.
Product use: Used in artificial fiber stabilizer, fabric bleach, photographic developers, dye drift deoxidizer, spices and dye reductant, paper lignin removal from the agent
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 | — | — | — |
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.
Contact Person: Mrs. Kim Xie
Tel: +8613975090964
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