Product Description
Sodium sulfite is commonly known as sulfur oxide powder, there are two kinds of sodium sulfite and sodium sulfite heptahydrate. Anhydrous sodium sulfite is white powder; Sodium sulfite heptahydrate is colorless or slightly yellow crystal, easily soluble in water, the aqueous solution is alkaline, easy to weather in the air and be oxidized to sodium sulfate. Sodium sulfite is widely used in industrial and civil fields. It is one of the important pulping methods in the paper industry to cook plant fiber with sodium sulfite cooking solution at a certain temperature and pressure, and the paper industry is also the industry that consumes the most sodium sulfite products. Sodium sulfite is widely used to remove dissolved oxygen from water because of its low price, convenient source and fast reaction rate with oxygen. Sodium sulfite is used for leather treatment, can make leather soft, full, tough, waterproof, anti-folding, wear and other properties. Sodium sulfite is a widely used food additive permitted by the state, which can be used as bleach, preservative, loose agent, antioxidant, color protection and fresh-keeping agent for food processing.
Product Parameters
Item |
Food Grade (GB 1894-2005) |
Industrial Grade (HG/T 2967-2000) |
Sodium Sulfite Content |
≥96.0% |
≥96.0% |
Sulfate (SO4) |
≤1.5% |
≤2.5% |
Chlorides (NaCl) |
≤0.1% |
≤0.5% |
Iron (Fe) |
≤0.002% |
≤0.005% |
Heavy Metals (Pb) |
≤0.0005% |
- |
Insoluble Residue in Water |
≤0.02% |
≤0.05% |
Thiosulfate |
- |
- |
Application
1. Textile Industry: As a bleaching agent and deoxidizer, it is used in the bleaching and mercerizing processes of fabrics. It can effectively prevent the loss of fiber strength while improving the fineness and whiteness of the fabric, thereby enhancing the quality of dyeing and printing.
2. Paper Industry: In the bleaching and pulping processes of paper pulp, it acts as a reducing agent and dechlorinator. It removes residual from the pulp, prevents the oxidative degradation of pulp fibers, and improves the quality and strength of the paper.
3. Water Treatment: As an oxygen scavenger and dechlorinator, it is used in boiler water treatment and wastewater treatment. It can rapidly remove dissolved oxygen and excess preventing equipment corrosion, extending the service life of equipment, and reducing environmental pollution.
4. Food Industry: As a preservative and antioxidant, it is widely used in foods such as dried fruits, nuts, jams, potato products, baking powder, sausages, candies, edible oils, beer, wine, soft drinks, and vinegar. It effectively extends the shelf life of food and maintains its color and flavor.
Packaging & Shipping
Packaging:25kg/Ton Bag, PP+PE Bag
Shipping: Any Major Port In The Country
Delivery Within 15 Days After Payment
10,000 Tons Suppy Monthly
Fast And Flexible Suppy Chain

Company Profile
Shouguang JIUCHONG Chemical Co.,Ltd. is located in the sea salt capital of China-Shouguang Weifang City, Shandong Province. Established in 2016, our company is mainly engaged in the production and sales of magnesium sulfate, calcium chloride, industrial salt, sodium metabisulfite, magnesium chloride, industrial salt, sodium sulfite, poly aluminum chloride, snow melting agent and other bulk chemical products.
After nine years of development, the company has sustained and stable development in the domestic market and received a large number of customers. At the same time, relying on our own geographical location and resource advantages, our company is committed to the optimization of a variety of chemical supply chain, the company exerts its own advantages, strives for excellence, wins the market and customers. Your satisfaction is our driving force. Quality is the soul of enterprise and that is what we have always done.
Shouguang JIUHCONG Chemical always adhere to the principle of "integrity management, mutual benefit, and common development", and meet the different needs of customers with high-quality products, reasonable prices and good services.We now have a professional international trade team. And We want to continue our efforts to expand into the international market. We believe we can establish good cooperative relations with Japan, South Korea, Bangladesh, Southeast Asia, Africa, America, Australia and other countries and regions. We sincerely hope to establish a long-term cooperative relationship with you.
Certifications

Customer Visiting
FAQ

1. Who are we?
We are based in Shandong, China, start from 2016, sell to Domestic Market (50.00%), Southeast Asia (20.00%), South Asia (10.00%), Africa (10.00%), North America (5.00%), South America (5.00%). There are total about 11-50 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?
Magnesium Sulphate, Calcium Chloride, Sodium Metabisulfite, Magnesium Chloride, Aluminum Sulfate
4. Why should you buy from us not from other suppliers?
Annual supply chain capacity over 200,000 ton
Pre-sale and after-sale service
Fast delivery with 15 days
Customized product size and packing
24 hours online service
Stable and qualified supply chain
5. What services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,DDU,Express Delivery.
Accepted Payment Currency:USD;
Accepted Payment Type: T/T, L/C,Credit Card.
Language Spoken:English,Chinese