Sodium Selenite Anhydrous is a professionally handled substance with documented safety properties. Its molecular formula is Na2SeO3, with a molecular weight of 172.95. This compound decomposes at both with a Boiling Point and Melting Point of Decomposes. It falls under the hazard signal word of Danger due to its acute toxicity when ingested orally (H300).

• CAS Number: 10102-18-8
• Exact Mass: 173.88080
• Melting Point: 710.0 °C — decomposes
• Vapour Density: 3.1
• Molecular Formula: Na2SeO3
• Boiling Point: Decomposes (no boiling point)
• GHS Signal Word: Danger
• Molecular Weight: 172.95
• Hazard Statements:
• H300: Fatal if swallowed [Danger Acute toxicity, oral]
• H400: Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]