Calcium Oxide [1305-78-8] presents a precisely defined set of physicochemical properties. It is a metal oxide compound with a molecular formula of CaO and a Molecular Weight of 56.08 g/mol. The compound exhibits a high Boiling Point of 2850.0 °C and a Melting Point of 2572.2 °C. Due to its hazardous nature, it carries a danger signal word. Specifically, it may cause harm if swallowed or lead to skin irritation.

• CAS Number: 1305-78-8
• Exact Mass: 55.9575055
• GHS Signal Word: Danger
• Vapour Density: 3.3 at 68 °F
• Molecular Formula: CaO
• Boiling Point: 2850.0 °C
• Melting Point: 2572.2 °C
• Molecular Weight: 56.08
• Hazard Statements:
• H302: Harmful if swallowed [Warning Acute toxicity, oral]
• H315: Causes skin irritation [Warning Skin corrosion/irritation]
• H303: May be harmful if swallowed [Warning Acute toxicity, oral]