| CAS No.: | 7681-57-4 |
|---|---|
| Formula: | Na2s2o5 |
| EINECS: | 231-673-0 |
| Appearance: | Powder |
| Certification: | CCIC, RoHS, ISO |
| Purity: | 90%~99% |
| Samples: |
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| Customization: |
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Audited Supplier Discover top-quality Sodium Pyrosulfite CAS 7681-57-4 for printing, dyeing, and tanning from Guangzhou Zhifan Chemical Co., Ltd., a leading chemical supplier in China.
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, creating 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 chemical compound that finds applications in various industries. Our product is utilized in the production of insurance powder, sulfamethazine, metamizole, caprolactam, and more. It is also used for purifying ***, phenylpropyl sulfone, and benzaldehyde.
In the photographic industry, our product serves as a key ingredient in fixatives. Additionally, it is essential in the spice industry for producing vanillin, as a preservative in the brewing industry, and as a rubber coagulant and dechlorinating agent post-cotton cloth bleaching.
Furthermore, our product acts as an organic intermediate, aiding in printing, dyeing, and tanning processes. It is also utilized as a reducing agent and for wastewater treatment in the electroplating industry, oil fields, and mineral processing in mines. In the food processing sector, it serves as preservatives, bleaching agents, and loosening agents.
Choose Guangzhou Zhifan Chemical Co., Ltd.'s product for high-quality performance across various industries.
Safe Dosage: The recommended dosage of sodium metabisulfite is between 10-1000mg/kg to prevent harmful effects on the human body.
Protective Measures: When handling, always 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 away from high temperatures and humidity. Ensure the container is sealed to prevent moisture absorption and caking.
Avoid Long-Term Storage: Due to potential deterioration, it is not recommended for long-term storage.
As procurement and channel specialists with extensive experience in the chemical industry, we offer the latest product consultations and market insights. With over 15 years of focus on the industry, our company operates over 5,000 square meters of dedicated chemical warehouses strategically located near Guangzhou Nansha Port and Shenzhen Port for convenient international shipping. We are qualified to handle dangerous goods and ensure quality through rigorous inspections and reports.
Our main products include 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. Trust Zhifan Chemical for reliable and high-quality chemical solutions.
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