Iodine is a technically defined substance with the molecular formula I2 and a Molecular Weight of 253.8089 g/mol. It has a Boiling Point of 185.0 °C, a Melting Point of 113.3 °C, and a density of 6.75 g/L at 101.3 MPa, 185 °C. The hazard signal word for iodine is Warning due to its potential harmfulness in contact with skin, if swallowed, or if inhaled.

• CAS Number: 7553-56-2
• GHS Signal Word: Warning
• Molecular Formula: I2
• Boiling Point: 185.0 °C
• Exact Mass: 253.80895
• Density: 6.75 g/L at 101.3 MPa, 185 °C
• Molecular Weight: 253.8089
• Melting Point: 113.3 °C
• Hazard Statements:
• H312: Harmful in contact with skin [Warning Acute toxicity, dermal]
• H302+H312+H332: Harmful if swallowed, in contact with skin or if inhaled [Warning Acute toxicity, oral; acute toxicity, dermal; acute toxicity, inhalation]
• H315: Causes skin irritation [Warning Skin corrosion/irritation]