Sodium Sulphite Anhydrous

Description

Sodium Sulphite Anhydrous

- Product Identification
CAS No. : ********7
EINECS No. : ********4
H.S. Code : ***2.*****0
Formula : Na2SO3
Molecular Weight : **6.*4
Toxicity : Oral mouse LD*0: **0 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.**3
Solubility in water : good
PH : 9
Vapor Density : 4.*5
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 : *7% Min / *3% Min
Water Insoluble : 0.*2% Max / 0.*3% Max
Fe : 0.**3% Max / 0.**5% 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 *5kgs /*0kgs /***0kgs net p.p. woven bags

- Other Trade Information
Min. Order Quantity : *5 MTS
Supply Capacity : *2,**0Mts /Year
Loading Capacity : *7Mts/***0Bags (1x*0\'FCL)
Port of Loading : Huangpu / Hengyang / Tianjin, China
Fresh Stocks : Yes
Ref. Price : USD**5.- ~ USD**0.- /MT FOB Huangpu / Tianjin, China
Shipment Time : Within **3 weeks upon receipt of advance payment or L/C .
Payment Terms : T/T, L/C ( Sight / *0days ), D/P, Western Union
Origin : Hunan, Tianjin
Sample Availability : Yes
Main Export Markets : India, Indonesia, Thailand, Pakistan, Bangladesh, Iran, Argentina, Turkey