Lianjin Brand Sodium Pyrosulfite Powder

• CAS No.: 7681-57-4
• Formula: Na2s2o5
• EINECS: 231-673-0
• Appearance: Powder
• Certification: CCIC, RoHS, ISO
• Purity: 90%~99%
• Model NO.: Sodium Pyrosulfite
• Type: Sodium Pyrosulfite
• Grade Standard: Food Grade
• Transport Package: Bag
• Specification: 25kg
• Trademark: changcheng
• Origin: China
• Production Capacity: 100000ton/Year

Product Description

Discover top-quality Changcheng Brand Sodium Pyrosulfite Powder from Guangzhou Zhifan Chemical Co., Ltd. Perfect for various applications like printing, dyeing, tanning, and food additives. Get the best price online!

Product Description

 

Sodium Metabisulfite

 

Sodium metabisulfite (Na₂S₂O₅) is a white or yellow crystal with a strong pungent smell. It is soluble in water and the aqueous solution is acidic. When in contact with a strong acid, it releases sulfur dioxide and generates corresponding salts. However, if exposed to air for an extended period, it will oxidize into sodium sulfate, making long-term storage impractical.

 

Features:

 

• White or yellow crystal


• Soluble in water


• Acidic aqueous solution


• Releases sulfur dioxide when in contact with strong acid




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Benefits:

 

• Effective in various industrial applications


• Helps in preserving food and beverages


• Useful in water treatment processes


• Ensures quality and safety in chemical processes




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For more information, contact Guangzhou Zhifan Chemical Co., Ltd.

 

Item	Food Grade	Industry Grade
Purity ( As Na2S2O5)	98.0% min	96.0% min
Sulfur Dioxide( SO2)	65.0% min	65.0% min
Arsenic ( As )	0.0002% max	-
Heavy metals ( As Pb )	0.0005% max	-
Selenium (Se )	0.0005% max	-
Iron (Fe)	0.001% max	0.002% max
Water insoluble	0.02% max	0.05% max
PH value :	4.0-4.8	4.0-4.8
Remark :	Conformed with FCCV and E223 Standard

 

Application Areas

Product Description


 

Welcome to Guangzhou Zhifan Chemical Co., Ltd.

 

Our product is a versatile chemical compound used in various industries for multiple purposes. It is commonly utilized in the production of insurance powder, sulfamethazine, metamizole, caprolactam, and more. Additionally, it is an essential ingredient in fixatives for the photographic industry, aids in the production of vanillin in the spice industry, and serves as a preservative in the brewing industry.

 

Furthermore, our product is utilized as a rubber coagulant, dechlorinating agent, organic intermediate, reducing agent, and in printing, dyeing, and tanning processes. It also finds applications in wastewater treatment, electroplating, oil fields, mineral processing, food processing as preservatives, bleaching agents, and loosening agents.

 

Choose our product from Guangzhou Zhifan Chemical Co., Ltd. for high-quality and reliable performance across various industries.

 

 

 

Sodium Metabisulfite Product Description


 

Welcome to Guangzhou Zhifan Chemical Co., Ltd.

 

Sodium Metabisulfite

 

Safe Dosage: The recommended dosage of sodium metabisulfite is 10-1000mg/kg to prevent harmful effects on the human body.

 

Protective Measures: Wear gloves, masks, and goggles during operation to avoid direct contact.

 

Avoid Mixing: Do not mix with foods high in vitamin C to preserve nutritional content.

 

Storage Conditions: Store in a dry, ventilated, and cool place. Keep sealed to prevent moisture absorption and caking.

 

Avoid Long-Term Storage: Due to potential deterioration, long-term storage is not recommended.

 

FAQ

 Are you a factory or a trader?
We are a trader, but we have cooperative factories that provide stable supply, especially sodium hydroxide and sodium sulfide. We are the exclusive agent in southern China and have certain advantages in channels and prices. At the same time, if you need other chemical products, we can also Finding a suitable factory for you to cooperate with will not limit you to one factory providing a single product.

Are your prices the lowest?
Maybe the price you see on the product interface is fixed and different from other companies. However, the prices of products in the chemical industry will change frequently. We can only say that we can provide you with high-quality supply as much as possible. Lowering the price, of course, is also related to the quantity you purchase. You can consult customer service for the latest product prices.

Are the quality of your products stable?
Because we are a trading company, we cooperate with large-scale factories in China. Before cooperating with them, we will purchase samples and inspect the factories. Only products with stable product quality that comply with national regulations can enter ours. In the product list, we will conduct an additional inspection for the exported goods, and any products that do not meet the standards will be rejected by us.

What's your MOQ?
Our minimum order quantity is 1 ton, which is shipped by LCL with other goods (except for special chemicals)

Do you provide free samples?
We do not provide free samples for the time being, because the production methods and quality testing of chemical standards are the same. I can provide you with the quality testing report of our products and other certifications you need to ensure that our quality is the same as high-quality products on the market.