Detailed Description: |
Cas No. :7757-83-7
Quantity: 22,000Metric Tons
Specs:97% Min / 93% Min
Price:520 USD Metric Tons
Payment Method: T/T, L/C, D/P, Western Union
Sodium Sulphite Anhydrous
– Product Identification CAS No. : 7757-83-7 EINECS No. : 231-821-4 H.S. Code : 2832.100000 Formula : Na2SO3 Molecular Weight : 126.04 Toxicity : Oral mouse LD50: 820 mg/kg Synonyms : Sodium Sulfite Anhydrous; Disodium Sulfite; Natrii Sulphis; Natrium Sulfurosum; Natriumsulfit (German); Sulfurous Acid, Disodium Salt;
– Physical And Chemical Properties Physical State : White crystalline powder Melting Point : Decomposes Specific Gravity : 2.633 Solubility in water : good PH : 9 Vapor Density : 4.35 NFPA Ratings : Health: 1 Flammability: 0 Reactivity: 0 Stability : Stable under ordinary conditions
– Applications – Pharmaceutical industry for the production of chloroform, benzene, styrene sulfone, formaldehyde. – Rubber industry as a coagulant. – Bleached cotton printing and dyeing industry as the dechlorination agent, cotton scouring agent. It can prevent the partial oxidation of cotton cloth fiber and influence the fiber strength. – Leather tanning industry for processing,make the leather soft, plump, tough, waterproof, bending, wear and other properties. – The chemical industry for the production of vanillin hydroxyl, hydroxylamine hydrochloride and so on. – Photographic Industry as a developer, etc. – The food industry as a bleaching agent, preservatives, leavening agent, antioxidant, color agents and the insurance agent. as reducer in producing dehydration vegetables. – Electronics industry for the manufacture of photosensitive resistance. – Paper-making, Electronic, Water-treatment for electroplating wastewater, drinking water, etc.
– Specification Testing Items / Quality Standard – Type (1) / Quality Standard – Type (2) Appearance : White crystalline powder / White crystalline powder Purity – NA2SO3 : 97% Min / 93% Min Water Insoluble : 0.02% Max / 0.03% Max Fe : 0.003% Max / 0.005% Max Free Alkali, as NA2CO3 : 0.1% Max / 0.4% Max Sulphates, as NA2SO4 : 2.5% Max / – Chlorides, as NACL : 0.1% Max / –
– Transportation Storage : Stored in cool and dry place, avoid moisture and heat Packing : In 25kgs /50kgs /1000kgs net p.p. woven bags
– Other Trade Information Min. Order Quantity : 25 MTS Supply Capacity : 22,000Mts /Year Loading Capacity : 27Mts/1080Bags (1×20’FCL) Port of Loading : Huangpu / Hengyang / Tianjin, China Fresh Stocks : Yes Ref. Price : USD305.- ~ USD520.- /MT FOB Huangpu / Tianjin, China Shipment Time : Within 2-3 weeks upon receipt of advance payment or L/C . Payment Terms : T/T, L/C ( Sight / 90days ), D/P, Western Union Origin : Hunan, Tianjin Sample Availability : Yes Main Export Markets : India, Indonesia, Thailand, Pakistan, Bangladesh, Iran, Argentina, Turkey
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