Product Overview & Quality

Product Name: Sodium sulfite anhydrous
Grade: Analytical Reagent (AR Grade), featuring high purity for laboratory standards and precise chemical processes.
Purity (Assay): Not less than 98%
Physical Properties: Odorless white powder or granules.
Solubility: Soluble in water; aqueous solutions are slightly alkaline.

Safety & Hazards

Classification: Categorized as an irritant to eyes and the respiratory system.
Critical Danger: Do NOT mix with strong acids. Contact with acids releases toxic and pungent sulfur dioxide gas.
Health Risks: Direct contact may cause skin and eye irritation. It may trigger severe allergic reactions in sulfite-sensitive individuals.
First Aid Measures: Flush affected skin or eyes with plenty of water. If gas or dust is inhaled, move the person to fresh air immediately.

Handling & Storage

Storage: Must be kept in a tightly sealed, airtight container. The substance is sensitive to atmospheric oxygen, which causes oxidation into sodium sulfate. Store in a cool, dry place.
Precautions: Wear standard PPE, including chemical-resistant gloves and safety goggles. Store strictly away from acids and strong oxidizing agents.