| Customization: | Available |
|---|---|
| CAS No.: | 7681-57-4 |
| Formula: | Na2s2o5 |
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Discover top-quality Sodium Pyrosulfite CAS 7681-57-4 for printing, dyeing, and tanning from Guangzhou Zhifan Chemical Co., Ltd. Perfect for water treatment needs.
Sodium Metabisulfite
Guangzhou Zhifan Chemical Co., Ltd. offers high-quality sodium metabisulfite, an inorganic compound available in white or yellow crystals with a strong pungent smell. This compound is soluble in water, producing an acidic aqueous solution. When exposed to strong acids, it releases sulfur dioxide and forms corresponding salts. However, prolonged exposure to air leads to oxidation into sodium sulfate, making long-term storage impractical.
| 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 | |
Product Description:
Guangzhou Zhifan Chemical Co., Ltd. offers a versatile and high-quality product that is widely used across various industries. Our product is essential for the production of insurance powder, sulfamethazine, metamizole, caprolactam, and more. It is also utilized in the purification of ***, phenylpropyl sulfone, and benzaldehyde.
In the photographic industry, our product serves as a key ingredient in fixatives. In the spice industry, it is crucial for vanillin production, while in the brewing industry, it acts as a preservative. Additionally, it is used as a rubber coagulant, dechlorinating agent, organic intermediate, and reducing agent.
Moreover, our product finds applications in printing, dyeing, tanning, wastewater treatment in the electroplating industry, oil fields, mineral processing agents in mines, as well as preservatives, bleaching agents, and loosening agents in food processing.
Choose Guangzhou Zhifan Chemical Co., Ltd.'s product for reliable and efficient performance across a wide range of industrial applications.
Safe Dosage: The recommended dosage of sodium metabisulfite is 10-1000mg/kg to prevent harmful effects on the human body.
Protective Measures: Wear protective equipment like gloves, masks, and goggles during operation 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 Long-Term Storage: Due to potential deterioration, long-term storage is not recommended.
Our company, with over 15 years of experience in the chemical industry, offers the latest product consultation and market insights. We have 5,000 square meters of chemical warehouses strategically located near Guangzhou Nansha Port and Shenzhen Port for convenient international shipping. With qualifications to handle dangerous goods, our products undergo rigorous quality inspections, providing you with confidence in your purchase.
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