The Triphenylphosphine, with a Molecular Weight of 262.29 g/mol, is a reducing agent categorized under organic and bioorganic chemicals. It belongs to the Phosphorus compounds, organic substance group. This compound has a Melting Point of 176°F (NTP, 1992) and a density of 1.194 at 77°F (NTP, 1992), making it denser than water and prone to sinking. In the workplace, it requires specific precautions such as wearing safety gloves, using safety goggles, and adhering to no smoking policies due to its potential for causing harm if swallowed or inducing allergic skin reactions. The GHS signal word associated with this compound is "Warning.

• CAS Number: 603-35-0
• Molecular Formula: C18H15P
• Molecular Weight: 262.3
• Exact Mass: 262.091137476
• Boiling Point: greater than 680 °F at 760 mmHg (NTP, 1992)
• Melting Point: 176 °F (NTP, 1992)
• Density: 1.194 at 77 °F (NTP, 1992) - Denser than water; will sink
• GHS Signal Word: Warning
• Hazard Statements:
• H302 (97.1%): Harmful if swallowed [Warning Acute toxicity, oral]
• H317: May cause an allergic skin reaction [Warning Sensitization, Skin]