Customization: | Available |
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CAS No.: | 7681-57-4 |
Formula: | Na2s2o5 |
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Top-quality Sodium Pyrosulfite CAS 7681-57-4 powder on sale with insurance. Supplier: Guangzhou Zhifan Chemical Co., Ltd.
Sodium metabisulfite (Na2S2O5) is a versatile inorganic compound available in white or yellow crystals with a distinctive pungent odor. It is highly soluble in water, resulting in an acidic aqueous solution. When exposed to strong acids, it liberates sulfur dioxide and forms corresponding salts. However, prolonged exposure to air leads to oxidation into sodium sulfate, necessitating short-term storage.
Our company, Guangzhou Zhifan Chemical Co., Ltd., offers high-quality sodium metabisulfite that meets industry standards for various applications.
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:
Choose our product for its wide range of applications and high-quality performance.
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 temperatures and humidity.
Avoid Long-Term Storage: Due to potential deterioration, it is not recommended for long-term storage.