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
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.
Item Super First Qualified
Purity (na2co3) 97.0%min. 96% min. 93.0%min.
Fe 0.003%max. 0.005%max. 0.01%max.
Water insolubles 0.02%max. 0.03% max. 0.05%max.
Free alkal 0.10%max. 0.40% max. 0.60%max.
Na2so4 2.5%max.
Nacl 0.10%max.
Uses: it is used as a desoxydating or bleaching agent for printing and dyeing industry, as a developer for photographic industry. As a lignin-removing agent for paper industry, as a stabilizer for synthetic fiber for textile industry, as a reducing agent for chemical industry, or for electroplating industry etc.
Aluminium oxide al2o3 % min 15.8
Iron fe content% max 0.50
Water insoluble matter % max 0.15
Ph value 1% aqueous solution min 3.0
Heavy metals as pb % max 0.002
As % max 0.0005
Type flakes
Product Description: "This product is one of Sebchem Key products
Some of our direct/ Indirect clients are ARAMCO, ADNOC, SCHLUMBERGER, BAKER HUGHES, CLARIANT, CHAMPION, GE, SUEZ, METITO, ECOLAB, MAPEI, SIKA, ARAMCO REFINERIES, SCOTT BADER, SYNTHOMER, IFFCO.
Sebchem providing its chemicals to our global clients in the Oil & Gas Upstream Oil & Gas Downstream, Petrochemicals, Industrial, Water Treatment, Construction, Detergent, Coating & Resin, Agro, Textile, Food. We supply chemicals IBCs, Drums, ISO Tanks, Bags, and up to Bulk Vessels"
Price of product ( USD price or FOB price): USD
Product origin: Multiple
Key Specifications/Special Features: "This is one of Key products of Sebchem given to Sebchem clinets across the World. Please contact our sales team or via our website for getting TDS, SDS, COA
"
CAS No. : 7757-83-7
Molecular formula: Na2SO3
Packing : 27 MT for 1x20 gp . 25 kgs packing .
application:
1. Anhydrous sodium sulfite is used for film development
2. Used as reducing agent and sulfonating agent in chemical industry;
3. Dechlorination agent and bleaching agent in printing and dyeing industry;
4. Stabilizers for chemical fibers, etc.
1>Bleaching agent for paper pulps ;
2>Waste water treatment
3>Reducing and sulfonating agent for chemical synthesis
4>Bleaching agent for textiles
5>Colors stripper and deoxidization ;
6>Floating agent for mining industry;
7>Auxiliary chemical in tanning process .
1>25kg/50kg compound plastic woven bag with inner polythene liner ;
2>1000kg Jumbo bags;
3>Any other particular requirements to the package can be discussed.
