97% Sodium Sulfite Powder Bleaching Agent Sodium Sulfite CAS 7757-83-7

• CAS No.: 7757-83-7
• Formula: Na2so3
• EINECS: 231-821-4
• Certification: CCIC, CIQ, ISO
• Purity: ≥99%
• Type: Sodium Sulfite
• Model NO.: 97%
• Appearance: White Crystal or Powder
• Grade Standard: Industrial Grade, Agriculture Grade
• Molecular Weight: 126.04 G/Mol
• Solubility: Soluble in Water and Slightly Soluble in Alcohol
• Odor: Sulfurous Odor
• Application: Food Preservative, Textile, Water Treatment
• Transport Package: Plastic Bag
• Specification: 25Kg / 50Kg / 200Kg / 1000 Kg or as your request
• Trademark: RUISUNNY
• Origin: China
• HS Code: 2832100000
• Production Capacity: 50000mt/Year

Product Description

Specification

                                                             Sodium sulfite anhydrous
 

Items	Standard	Analytical result
Main content (Na2SO3)	96% min	96.80%
Fe	0.005%max	0.00%
Free alkali	0.1% max	0.10%
Sulfate (as Na2SO4)	2.5%max	2.00%
Water insolubles	0.02% max	0.01%
Conclusion	The goods up to the requirement of standard

 

Product Description

Sodium sulfite is a white crystalline powder with a sulfurous odor. It is soluble in water and slightly soluble in alcohol. Its chemical formula is Na2SO3, and its molecular weight is 126.04 g/mol. Sodium sulfite is a reducing agent and can easily lose sulfur dioxide gas when exposed to air. Sodium sulfite is commonly used as a reducing agent and antioxidant in various industries, including food and beverage, water treatment, and photography. It is also used in the production of paper and pulp, as well as in the textile industry for dyeing and bleaching processes. Sodium sulfite is known to be a skin and eye irritant and can be harmful if ingested or inhaled in large quantities.

Application

1. Food industry: Sodium sulfite is used as a food preservative to prevent the growth of bacteria and fungi. It is commonly used in dried fruits, wines, and meat products.

2. Photography: Sodium sulfite is used in developing solutions for photographic films and papers. It helps to remove the unexposed silver halides from the film, preventing further development.

3. Water treatment: Sodium sulfite is used in water treatment plants to remove excess chlorine from water. It acts as a reducing agent and helps to neutralize the chlorine, making the water safe for consumption.

4. Textile industry: Sodium sulfite is used as a bleaching agent and a reducing agent in the textile industry. It helps to remove color impurities from fabrics and improves the dyeing process.

5. Pulp and paper industry: Sodium sulfite is used in the production of pulp and paper. It helps to break down lignin, a natural polymer present in wood, and aids in the delignification process.

6. Chemical industry: Sodium sulfite is used in various chemical reactions as a reducing agent. It is also used in the production of dyes, chemicals, and pharmaceuticals.

7. Cosmetics industry: Sodium sulfite is used in some cosmetic products as a preservative and an antioxidant. It helps to prevent the growth of bacteria and oxidation of the product.

8. Gas scrubbing: Sodium sulfite is used in gas scrubbing processes to remove sulfur dioxide (SO2) from industrial flue gases. It reacts with SO2 to form sodium sulfate, which can be easily removed.

Packaging & Shipping

 

Company Profile

 

Wuhan Ruisunny Chemical Co.,Ltd was established in 2010 with registered capital of CNY 20 million, the company focuses on trading of such chemicals as WATER TREATMENT CHEMICALS, FOOD ADDITIVES , ORGANICS SILICONE and general INORGANICS/ORGANICS. Over the years of development, the sales of the company has extended to more than 50 countries or regions. Based on principle of Co-win, we are looking forward to cooperating with you!
 

Certifications

Exhibition

FAQ

1. who are we?
We are based in Hubei, China, start from 2010,sell to Southeast Asia(20.00%),South Asia(20.00%),Domestic Market(20.00%),South America(10.00%),North America(10.00%),Northern Europe(7.50%),Southern Europe(7.50%),Central America(5.00%). There are total about 101-200 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
Azodicarbonamide ,Hydrogen Peroxide ,Calcium Hypochlorite,SODA ASH,TRICHLOROISOCYANURIC ACID,VINYL SILICONE OIL and so on.

4. why should you buy from us not from other suppliers?
Wuhan Ruisunny Chemical Co.,Ltd was established in 2010 with registered capital of CNY 20 million, the company focuses on trading of such chemicals as WATER TREATMENT CHEMICALS, FOOD ADDITIVES and general INORGANICS/ORGANICS. Over the years of development,

5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,DDU,DAF;
Accepted Payment Currency:USD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A;
Language Spoken:English,Chinese