| Quantity: | |
|---|---|
7757-83-7
bosschemical
7757-83-7
Sodium sulfite
CAS No.7757-83-7
Alias:anhydroussodiumsulfite;disodiumsulfite;exsiccatedsodiumsulfite;natriisulphis;natriumsulfid;natriumsulfit;natriumsulfurosum;sodiumsulfite(2:1)
Molecular formula：Na2O3S
Molecular weight：126.04
Structural formula：
1. Performance and use:
Colorless monoclinic crystal. Easily soluble in water, its aqueous solution is alkaline reaction; insoluble in ethanol. UsesReducing bleaching agent, bleaching effect on food and strong inhibition of oxidizing enzyme in plant food. China's regulations can be used in preserves, the maximum use level is 2.0g/kg; can also be used in glucose, liquid glucose, table sugar, rock sugar, caramel, candy, bamboo shoots, mushrooms and canned mushrooms, grapes, blackcurrant juice concentrate, the maximum use level is 0.60g/kg. bamboo shoots, mushrooms and canned mushrooms, preserves, grapes, and blackcurrant juice concentrate residue (SO2) ≤ 0.05g/kg; Residue of potato starch≤0.03g/kg; residue of cookies, sugar, vermicelli and other varieties is less than 0.1g/kg; residue of liquid glucose shall not exceed 0.2g/kg.UsageSodium sulfite anhydrous can be used as stabilizer of man-made fibers, bleaching agent of fabrics, photographic developer, deoxidizing agent of dyeing and bleaching, reductant of spices and dyes, and lignin removal agent of papermaking, etc.: It can be used as deoxidizing agent and bleaching agent of printing and dyeing industry. Deoxidizer and bleaching agent in the printing and dyeing industry, used in the boiling of various cotton fabrics, can prevent local oxidation of cotton fibers and affect the strength of the fiber, and improve the whiteness of the boiled product. It can also be used to make cellulose sulfite ester, sodium thiosulfate, organic chemicals, bleaching fabrics, etc. It is also used as a reducing agent, antiseptic, dechlorinating agent. It is used for trace analysis and determination of tellurium and niobium and preparation of developing solution, also used as a reducing agent, and used as a developing agent in photographic industry. It is used as a reducing agent for the production of m-phenylenediamine, 2,5-dichloropyrazolone, anthraquinone-1-sulfonic acid, 1-amino anthraquinone, sodium aminosalicylate, etc. in organic industry, which can prevent the oxidation of semi-finished products in the process of reaction. Used as reducing agent in the production of dehydrated vegetables. Used as lignin remover in paper making industry. Used as stabilizer for man-made fibers in textile industry. Used as general analytical reagent and photoresistor material, used in the electronic industry for the manufacture of photoresistors. Used as electroplating wastewater and drinking water treatment in water treatment industry.
2.Technical indicators:
| Item | Quality Index | |
| Industry Grade | Food Grade | |
| Purity ( As Na2SO3) | 96.0% min | 98.0% min |
| Sodium sulphate ( SO4) | 2.0% max | 1.2% max |
| Chlorides ( As NaCL) | 0.5% max | 0.08% max |
| Arsenic ( As ) | - | 0.0002% max |
| Heavy metals ( As Pb ) | - | 0.0005% max |
| Iron (Fe) | 0.005% max | 0.003% max |
| Water insoluble | 0.05% max | 0.01% max |
3. Packaging and storage:
Packaging specification:25kg/bag, also can be determined according to user's need.
During transportation, it is necessary to protect against sunlight, rain, and high temperatures.
The product should be stored in a cool, dark, ventilated place, away from sources of fire.
4.Safety protection:
Pay attention to labor protection when handling it and avoid contact with skin, eyes, etc.After contact, rinse immediately with plenty of water
Related keywords：
Sodium sulfite
CAS No.7757-83-7
sodium sulfite anhydrous
sodium sulfite price
sodium sulfite na2so3
Sodium sulfite
CAS No.7757-83-7
Alias:anhydroussodiumsulfite;disodiumsulfite;exsiccatedsodiumsulfite;natriisulphis;natriumsulfid;natriumsulfit;natriumsulfurosum;sodiumsulfite(2:1)
Molecular formula：Na2O3S
Molecular weight：126.04
Structural formula：
1. Performance and use:
Colorless monoclinic crystal. Easily soluble in water, its aqueous solution is alkaline reaction; insoluble in ethanol. UsesReducing bleaching agent, bleaching effect on food and strong inhibition of oxidizing enzyme in plant food. China's regulations can be used in preserves, the maximum use level is 2.0g/kg; can also be used in glucose, liquid glucose, table sugar, rock sugar, caramel, candy, bamboo shoots, mushrooms and canned mushrooms, grapes, blackcurrant juice concentrate, the maximum use level is 0.60g/kg. bamboo shoots, mushrooms and canned mushrooms, preserves, grapes, and blackcurrant juice concentrate residue (SO2) ≤ 0.05g/kg; Residue of potato starch≤0.03g/kg; residue of cookies, sugar, vermicelli and other varieties is less than 0.1g/kg; residue of liquid glucose shall not exceed 0.2g/kg.UsageSodium sulfite anhydrous can be used as stabilizer of man-made fibers, bleaching agent of fabrics, photographic developer, deoxidizing agent of dyeing and bleaching, reductant of spices and dyes, and lignin removal agent of papermaking, etc.: It can be used as deoxidizing agent and bleaching agent of printing and dyeing industry. Deoxidizer and bleaching agent in the printing and dyeing industry, used in the boiling of various cotton fabrics, can prevent local oxidation of cotton fibers and affect the strength of the fiber, and improve the whiteness of the boiled product. It can also be used to make cellulose sulfite ester, sodium thiosulfate, organic chemicals, bleaching fabrics, etc. It is also used as a reducing agent, antiseptic, dechlorinating agent. It is used for trace analysis and determination of tellurium and niobium and preparation of developing solution, also used as a reducing agent, and used as a developing agent in photographic industry. It is used as a reducing agent for the production of m-phenylenediamine, 2,5-dichloropyrazolone, anthraquinone-1-sulfonic acid, 1-amino anthraquinone, sodium aminosalicylate, etc. in organic industry, which can prevent the oxidation of semi-finished products in the process of reaction. Used as reducing agent in the production of dehydrated vegetables. Used as lignin remover in paper making industry. Used as stabilizer for man-made fibers in textile industry. Used as general analytical reagent and photoresistor material, used in the electronic industry for the manufacture of photoresistors. Used as electroplating wastewater and drinking water treatment in water treatment industry.
2.Technical indicators:
| Item | Quality Index | |
| Industry Grade | Food Grade | |
| Purity ( As Na2SO3) | 96.0% min | 98.0% min |
| Sodium sulphate ( SO4) | 2.0% max | 1.2% max |
| Chlorides ( As NaCL) | 0.5% max | 0.08% max |
| Arsenic ( As ) | - | 0.0002% max |
| Heavy metals ( As Pb ) | - | 0.0005% max |
| Iron (Fe) | 0.005% max | 0.003% max |
| Water insoluble | 0.05% max | 0.01% max |
3. Packaging and storage:
Packaging specification:25kg/bag, also can be determined according to user's need.
During transportation, it is necessary to protect against sunlight, rain, and high temperatures.
The product should be stored in a cool, dark, ventilated place, away from sources of fire.
4.Safety protection:
Pay attention to labor protection when handling it and avoid contact with skin, eyes, etc.After contact, rinse immediately with plenty of water
Related keywords：
Sodium sulfite
CAS No.7757-83-7
sodium sulfite anhydrous
sodium sulfite price
sodium sulfite na2so3
