Name: sodium sulfite
CAS NO :7757-83-7
Grade: industrial grade, food grade
Molecular formula : Na2SO3
Molecular weight: 126.04
Appearance : white crystalline powder
Quality standard: HG/T 29672000
Packing: Net Weight 25kg or 50kg/plastic woven sack with PE inner-bag, 20MT/20fªFCL
Sepcification:
Index name Premium grade
Super grade First grade Salable product Industrial grade
Sodium sulfite ( Na2SO3 ) , % fª 97.0 96.0 93.0 90.0
Fe , f_ 0.003 0.005 0.01 /
Water insoluble matter , % f_ 0.02 0.03 0.05 /
Free alkali ( as Na2SO3 ) , % f_ 0.10 0.40 0.60 /
Na2SO4 , % f_ 2.50 / / /
NaCl , % f_ 0.10 / / / .
Packing: double-layer plastic woven bag.
Uses: bleaching agent for paper pulps; waste water treatment; reducing and sulphonating agent for chemical synthesis; bleaching agent for textiles; color striper and deoxidization; floating agent for mining; auxiliary chemical in tanning process.
Packing: Net Weight 25kg or 50kg/plastic woven sack with PE inner-bag, 20MT/20fªFCL.
SODIUM SULFITE / SULPHITE (NA2SO3) Varied range of sodium sulphite uses- -In the production of pulp -In the sulfidization of tanning extract -In the production of shampoo and trinitrotoluene (TNT) -An antichlor in water treatment -A moderate reducing agent in the production of chemicals and drugs -A preservative in natural latex rubber and photography -An oxidant, enzyme inhibitor, and anti-microbial agent in the food industry -As a solvent in the fibre industry. Pulping agent This product is used in the production of chemi-mechanical, chemi-thermomechanical and sulphite pulp. It is a white granular product that is readily soluble in water. Oxygen scavenging and chlorine removal This product is used in steam boiler water treatment to remove dissolved oxygen and to remove excess chlorine from wastewater. It is a white granular product that is readily soluble in water. Solubilizing agent This product is used as a solubilizing agent in vegetable tanning. It is a white granular product that is readily soluble in water. Reducing and sulfonating agent This product is used as a sulfonating agent and reducing agent in chemical process with significant applications for surfactants and polymerization. It is a white granular product that is readily soluble in water. Reducing agent for dyes This product is used in the textile industry as as reducing agent for dyes. It is a white granular product that is readily soluble in water. Chrome and metals reduction This product is used to reduce chrome and other metals. It is a white granular product that is readily soluble in water. Product data and typical properties Formula: Na2SO3Molecular Weight: 126.04pH of 5% Solution: 10.1 Bulk Density, lb/ft3: 95 Odorless free flowing, white to pale yellow granular crystal that is soluble in water.
Commodity:Sodium sulfite Molecular Formula: Na2SO3 Molecule Weight: 126.04 Appearance: white or light yellow crystalline powder Item Value Top-grade First grade Qualified product sodium sulfite (Na2SO3),% 98.0, 96.0, 93.0 Fe,% 0.003 0.005 0.02 water-Insoluble ,% water-Insoluble ,% 0.02, 0.03, 0.05 Free alkali(as Na2SO3),% 0.10, 0.40, 0.80 Sulfate(as Na2SO4),% 2.5 Chloride(as NaCl),% 0.10 Uses: used in leather and tannage, plant bleaching agent, reductant Packing: in polythene plastic bag with a polypropylene overbag, paper-plastic composite bag, kraft bag, etc. Net weight: 25,50,1000kilograms per bag or following your demand.
It is primarily used in pulp and paper industry. It is used as an oxygen scavenger agent , in the photographic industry to protect developer solutions from oxidation, in textile industry as a bleaching, as a desulfurizing and as a dechlorinating agent and in leather trade for the sulfitization of tanning extracts. It is used in chemical manufacturing as a sulfonation and sulfomethylation agent. It is used in the production of sodium thiosulfate. It is use in other applications include ore flotation, oil recovery, food preservative, making dyes, and detergent. It is mainly used in medicine, tannage and tanning. Sodium Sulfite Food Grade WC Code: 19-047-02 Sales Specification Appearance: White Powder Na2S2O3: 97.0% Min Sodium Sulphate: 2.5% Max Iron (Fe): 0.002% Max Water Insoluble: 0.02% Max Free Alkali (Na2CO3): 0.3% Max As: 0.0002% Max Heavy Metal (Pb): 0.001% Max Packing 50 lb paper bag , 44 bags per pallet
Commodity:Sodium sulfite Molecular Formula: Na2SO3 Molecule Weight: 126.04 Appearance: white or light yellow crystalline powder Item Value Top-grade First grade Qualified product sodium sulfite (Na2SO3),% 98.0, 96.0, 93.0 Fe,% 0.003 0.005 0.02 water-Insoluble ,% water-Insoluble ,% 0.02, 0.03, 0.05 Free alkali(as Na2SO3),% 0.10, 0.40, 0.80 Sulfate(as Na2SO4),% 2.5 Chloride(as NaCl),% 0.10 Uses: used in leather and tannage, plant bleaching agent, reductant Packing: in polythene plastic bag with a polypropylene overbag, paper-plastic composite bag, kraft bag, etc. Net weight: 25,50,1000kilograms per bag or following your demand.
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Name:Sodium sulphite Appearance:White crystalline powder CAS No.:7757-83-7 Formula:Na2SO3 H.S. Code2832.10.00 Common Names:Hypo clear IUPAC Name:Sodium Sulfite 800 @ 25 kg Polythene plastic bag with a polypropylene over bag, 20 MT / 20'FCL
Classification: sulphate type: sodium sulfite cas no.: 7757-83-7 other names: sodium anhydrous mf: na2so3 einecs no.: 231-821-4 place of origin: shandong, china (mainland) grade standard: industrial grade, reagent grade purity: 97% appearance: white crystalline powder application: industrial grade, reagent grade brand name: blue ribbon model number: br-005 classification: sulphate mf: na2so3 grade standard: industrial grade, reagent grade brand name: blue ribbon type: sodium sulfite einecs no: 231-821-4 purity: 97% model number: br-005 cas no: 7757-83-7 appearance: white crystalline powder 1.Color: white crystalline powder 2.Purity: 97% 3.Packing:25kg/50kg bag or as per customer's request.
Characteristic: Physical Appearance Assay as Na2SO3 Ph of 10% solution Clarity of 20% solution Iron content Chloride content Heavy metals Free Alkali Specification: White crystalline powder 92% min 9. 5 to 11.00 clear / slight hazy 50PPM max 100PPM max 15 PPM max. 0.15% max. Application: Oxygen scavenger , water treatment chemical, metal treatment chemicals, paper mills, detergent, Oil field chemical. Dye & intermediates, leather treatment, photograph, specialty chemicals, photography, agro industry.
Na2SO3=85%,90%,93%. 25kg£¬1000kg,1100kg/bag.
