Sodium Sulfite Anhydrous For Analysis Emsure® Reag. Ph Eur is supplied with defined handling requirements for laboratory use. It is a sodium compound belonging to the sulfites, hydrogen sulfites, disulfites group, with a molecular formula of Na2SO3 and a molecular weight of 126.05. This substance decomposes upon heating, both as a solid and vapor, as indicated by the Boiling Point and Melting Point data. A warning label indicates that it is harmful if swallowed.

• CAS Number: 7757-83-7
• Vapour Density: 2.633 at 59 °F
• Melting Point: Decomposes (no boiling point)
• Molecular Weight: 126.05
• Boiling Point: Decomposes (no boiling point)
• GHS Signal Word: Danger
• Exact Mass: 125.93635360
• Molecular Formula: Na2SO3
• Hazard Statements:
• H302: Harmful if swallowed [Warning Acute toxicity, oral]