Trioctylphosphine
[CAS# 4731-53-7]

Identification

• Classification: Organic raw materials >> Organic phosphine compound
• Name: Trioctylphosphine
• Molecular Formula: C₂₄H₅₁P
• Molecular Weight: 370.63
• CAS Registry Number: 4731-53-7
• EC Number: 225-234-2

Properties

• Density: 0.831
• Boiling point: 284-291 °C (50 mmHg)
• Refractive index: 1.468

Safety Data

• Hazard Symbols: C
• Risk Statements: R34
• Safety Statements: S26;S36/37/39;S45

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin corrosion	Skin Corr.	1B	H314
Specific target organ toxicity - single exposure	STOT SE	3	H335
Eye irritation	Eye Irrit.	2	H319
Skin irritation	Skin Irrit.	2	H315
Skin corrosion	Skin Corr.	1A	H314
Serious eye damage	Eye Dam.	1	H318
Skin corrosion	Skin Corr.	1	H314
Acute toxicity	Acute Tox.	4	H332
Acute toxicity	Acute Tox.	4	H312
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400
Chronic hazardous to the aquatic environment	Aquatic Chronic	4	H413
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410
Acute toxicity	Acute Tox.	4	H302
Substances or mixtures corrosive to metals	Met. Corr.	1	H290

• Transport Information: UN 1760