Sodium Hydrogen Sulfide [16721-80-5] is widely used in synthesis and formulation workflows, featuring the molecular formula HNaS and a molecular weight of 56.07. It exhibits a Boiling Point of approximately 100.0 °C, and a Melting Point of 17.2 °C. This compound carries the hazard signal word Danger due to its flammability, self-heating potential, and toxicity if ingested.

• CAS Number: 16721-80-5
• GHS Signal Word: Danger
• Melting Point: 17.2 °C
• Molecular Weight: 56.07
• Exact Mass: 55.96966549
• Boiling Point: 100.0 °C (approx.)
• Vapour Density: 1.3 at 59 °F
• Molecular Formula: HNaS
• Hazard Statements:
• H226: Flammable liquid and vapor [Warning Flammable liquids]
• H251: Self-heating; may catch fire [Danger Self-heating substances and mixtures]
• H301: Toxic if swallowed [Danger Acute toxicity, oral]