| Customization: | Available |
|---|---|
| CAS No.: | 7681-57-4 |
| Formula: | Na2s2o5 |
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High-quality Sodium Pyrosulfite from China for printing, dyeing, and tanning. Supplier: Guangzhou Zhifan Chemical Co., Ltd. CAS 7681-57-4.
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. To prevent oxidation into sodium sulfate, it should not be stored for extended periods.
Manufactured by 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 | |
Our product is a versatile chemical compound used in various industries for a wide range of applications. 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.
Moreover, 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 for its high-quality and diverse applications across various industries. Contact Guangzhou Zhifan Chemical Co., Ltd. today to learn more about how our product can benefit your business.
Safe Dosage: The recommended dosage of sodium metabisulfite is 10-1000mg/kg to prevent harmful effects on the human body.
Protective Measures: When handling, wear protective equipment such as gloves, masks, and goggles to avoid direct contact.
Avoid Mixing: Do not mix with foods high in vitamin C or other chemicals to preserve nutritional content.
Storage Conditions: Store in a dry, ventilated, and cool place. Keep sealed to prevent moisture absorption and caking. Avoid high temperature and humidity.
Avoid Long-Term Storage: Due to potential deterioration, long-term storage is not recommended.
Procurement and channel specialists with extensive experience in the chemical industry offer the latest product consultation and market updates. With over 5,000 square meters of dedicated chemical warehouses strategically located in South China near Guangzhou Nansha Port and Shenzhen Port, international shipping is convenient. Our company is qualified to handle dangerous goods and ensures product quality through relevant department inspections and reports.
With a focus on the chemical industry for over 15 years, Zhifan Chemical offers a range of high-quality products including sodium hydroxide, sodium sulfide, polyaluminum chloride, polyacrylamide, oxalic acid, compound alkali, sodium hydrosulfide, sodium metabisulfite, ferrous sulfate, soda ash, glucose, citric acid, industrial salt, and defoaming agents.
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