Competitive Price Na2so3 7757-83-7 Sulfite Uses Hydrosulphite Sodium Sulphite

• CAS No.: 7757-83-7
• Formula: Na2so3
• EINECS: 231-821-4
• Certification: CCIC, CIQ, RoHS, ISO, Halal
• Purity: 99%
• Type: Sodium Sulfite
• Model NO.: UX
• Appearance: Powder
• Grade Standard: Food Grade
• Sodium Sulphate: 1.5% Max
• Water Insoluble Matter: 0.05% Max
• Molecular Weight: 126.043
• Character: White Powder
• Packing: 25/50/1000kg PP/Paper Bag
• Density: 2.63G/Cm3
• Pb: 10ppm Max
• Fe: 0.003% Max
• Nacl: 0.1% Max
• HS: 2832100000
• Bag Marks: Customizable
• Samples: Free
• Application: Deoxidizer and Bleach
• Dissolve in Water: Easy
• Dangerous: Non-Dangerous
• Transport Package: PP/Paper Bag
• Specification: 25kg/1000kg
• Trademark: UX
• Origin: China
• HS Code: 2832100000
• Production Capacity: 300000mt/Year

Product Description

Product Description

Sodium sulfite is an inorganic substance with the chemical formula Na2SO3. It is a sulfite of sodium and is mainly used as a stabilizer for artificial fibers, fabric bleach, photographic developer, dyeing and bleaching deoxidizer, spice and dye reducing agent, and lignin remover for papermaking.

 

 

 

Product Parameters

Molecular formula:Na2SO3
Molecular weight:126.043
Character:White powder. 

Specification of Sodium sulfite
 

 

ITEM	SPECIFICATION	TEST RESULT
Na2SO3 content	98.0 %min	98.30%
Sodium sulphate	1.5%max	1.0%
Sodium chloride (NaCL)	0.1%max	0.08%
Iron (Fe)	0.003%max	0.0015%
Water insoluble	0.05%max	0.02%
Heavy metal as Pb	10PPM MAX	5PPM
Free alkali (as Na2CO3)	0.30%max	0.24%

Detailed Photos

 Used for trace analysis and determination of tellurium and niobium, as well as preparation of developer solutions, and also as a reducing agent;
Used as a stabilizer for artificial fibers, fabric bleach, photographic developer, dyeing and bleaching deoxidizer, flavoring and dye reducing agent, papermaking lignin remover, 

 

 

Reducing bleach has a bleaching effect on food and a strong inhibitory effect on oxidase in plant-based foods. According to Chinese regulations, it can be used for preserves with a maximum usage of 2.0g/kg; 
 

 
 

Packaging & Shipping

1. Packing
25kg/50kg/1000kg PP/Paper bag or as per clients' requests.
27MT/20'GP

25kg PP/Paper bag or as per clients' requests.
27MT/20'GP

 

1000kg PP bag or as per clients' requests.
27MT/20'GP

 

2. Shipping
We mainly shipping by MSK, COSCO, MSC, MCC, CMA, OOCL, APL,HPL, ONE, WANHAI and so on.
 

 

Application

1. Used for trace analysis and determination of tellurium and niobium, as well as preparation of developer solutions, and also as a reducing agent;
2. Used as a stabilizer for artificial fibers, fabric bleach, photographic developer, dyeing and bleaching deoxidizer, flavoring and dye reducing agent, papermaking lignin remover, etc;
3. Used as a common analytical reagent and photosensitive resistor material;
4. Reducing bleach has a bleaching effect on food and a strong inhibitory effect on oxidase in plant-based foods. According to Chinese regulations, it can be used for preserves with a maximum usage of 2.0g/kg; It can also be used for glucose, liquid glucose, sugar, rock sugar, malt sugar, candy, bamboo shoots, mushrooms and canned mushrooms, grapes, blackcurrant concentrate, with a maximum usage of 0.60g/kg. The residual amount (calculated as SO2) of bamboo shoots, mushrooms, canned mushrooms, preserved fruits, grapes, and concentrated black currant juice is ≤ 0.05g/kg; Potato starch residue ≤ 0.03g/kg; The residual amount of biscuits, sugar, vermicelli, and other varieties is less than 0.1g/kg; The residual amount of liquid glucose shall not exceed 0.2g/kg;
5. The printing and dyeing industry, as a deoxidizer and bleach, is used for the cooking of various cotton fabrics, which can prevent local oxidation of cotton fibers and affect fiber strength, and improve the whiteness of the cooked fabric. The photosensitive industry is used as a developer. Organic industry is used as a reducing agent in the production of meta phenylenediamine, 2,5-dichloropyrazolone, anthraquinone 1-sulfonic acid, 1-aminoanthraquinone, sodium aminosalicylate, etc., which can prevent the oxidation of semi-finished products during the reaction process. Used as a lignin removal agent in the papermaking industry. The textile industry is used as a stabilizer for artificial fibers. The electronic industry is used to manufacture photoresistors. The water treatment industry is used for the treatment of electroplating wastewater and drinking water;
6. Used in the food industry as bleaching agents, preservatives, loosening agents, and antioxidants. Also used in pharmaceutical synthesis and as a reducing agent in the production of dehydrated vegetables;
7. Used in the production of cellulose sulfite esters, sodium thiosulfate, organic chemicals, bleached fabrics, etc., as well as reducing agents, preservatives, dechlorinating agents, etc;


 

Company Profile

UX CHEMICALS CO.,LTD established in 2018, is the leading manufacturer and supplier for chemicals,with strongest supplying capability and excellent service. We mainly produce and sell Calcium chloride, Sodium bicarbonate, Ammonium bicarbonate, Aluminium sulphate, Citric acid Soda ash, PAC, PVC, and other water treatment chemicals and food additives.

Our products were sold to most of the world, including Middle East, Africa, Southeast Asia, North America, South America, etc.
We can supply best quality, prompt delivery and professional service.
We insist on the belief "client′s satisfaction is our first concern".

Contact Information:
WF UNION CHEMICALS CO.,LIMITED
UX CHEMICALS CO.,LTD
Add: 7th Floor, Zhongtianxia Weifang International plaza, Weifang, China.
 

Product list

Industry Chemicals
Ammonium bicarbonate	CMC LV/HV	Sodium bicarbonate
Ammonium chloride industry grade	Glutaraldehyde	Sodium bromide liquid
Aluminium sulphate	Magnesium chloride flakes	Sodium bromide solid
Calcium bromide liquid	PAC LV/HV	Sodium metabisulphite
Calcium bromide solid	Poly Aluminium chloride	Sodium Metasilicate
Calcium chloride 74% flakes	Potassium hydroxide	Sodium nitrate
Calcium chloride powder 94%min	Potassium sulphate	Sodium Nitrite
Calcium chloride prills 94%min	Potassium formate	Sodium sulphate
Caustic soda flakes	Potassium acetate	THPS
Caustic soda pearls	Soda ash dense	Urea
Citric acid anhydrous	Soda Ash light	Xanthan gum
Citric acid monohydrate	PVC	Xanthan gum API grade

Food additives
Ammonium bicarbonate	Phosphoric acid food grade
Benzoic acid	Potassium sorbate
Calcium chloride flakes	Sodium benzoate
Citric acid anhydrous	Sodium bicarbonate
Citric acid monohydrate	Sodium metabisulphite
CMC	Xanthan gum food grade

Certifications

ISO9001&ISO14001