Triphenylphosphine CAS#603-35-0
Catalysis Application: Essential in transition-metal-catalyzed reactions, widely used in petrochemical and fine chemical industries.
Solubility: Readily soluble in ether, benzene, chloroform, and acetic acid, facilitating diverse applications.
Thermal Stability: Boiling point exceeds 360°C, making it stable under high-temperature conditions.
Crystalline Form: Available in a white to off-white crystalline powder, enhancing ease of handling and storage.
Triphenylphosphine, with the molecular formula C₁₈H₁₅P and a molecular weight of 262.30, is a white to off-white crystalline powder. It is readily soluble in ether and also dissolves well in benzene, chloroform, and glacial acetic acid, but shows only slight solubility in ethanol and is almost insoluble in water. It has a melting point ranging from 78.5 to 81.5 °C and a boiling point exceeding 360 °C when measured under inert gas conditions.
As a crucial ligand in homogeneous catalysis, triphenylphosphine plays a key role in the petrochemical and fine chemical industries, particularly in transition-metal-catalyzed reactions. With ongoing research and expanding industrial applications, its utility continues to grow, leading to a steady increase in market demand year after year.
Parameters
Melting point | 79-81 °C(lit.) |
Boiling point | 377 °C(lit.) |
bulk density | 500-600kg/m3 |
density | 1.132 |
vapor density | 9 (vs air) |
vapor pressure | 5 mm Hg ( 20 °C) |
refractive index | 1.6358 |
Fp | 181 °C |
storage temp. | Store below +30°C. |
solubility | water: soluble0.00017 g/L at 22°C |
form | Crystals, Crystalline Powder or Flakes |
color | White |
Specific Gravity | 1.132 |
Odor | odorless |
Water Solubility | Insoluble |
Hydrolytic Sensitivity | 8: reacts rapidly with moisture, water, protic solvents |
Merck | 14,9743 |
BRN | 610776 |
Stability: | Stable. Incompatible with oxidizing agents, acids. |
InChIKey | RIOQSEWOXXDEQQ-UHFFFAOYSA-N |
CAS DataBase Reference | 603-35-0(CAS DataBase Reference) |
NIST Chemistry Reference | Phosphine, triphenyl-(603-35-0) |
EPA Substance Registry System | Triphenylphosphine (603-35-0) |
Safety Information
Hazard Codes | Xn,N |
Risk Statements | 22-43-53-50/53-48/20/22 |
Safety Statements | 36/37-60-61-36/37/39-26 |
RIDADR | 3077 |
WGK Germany | 2 |
RTECS | SZ3500000 |
F | 9 |
Autoignition Temperature | 425 °C |
TSCA | Yes |
HS Code | 29310095 |
Hazardous Substances Data | 603-35-0(Hazardous Substances Data) |
Toxicity | LD50 orally in Rabbit: 700 mg/kg LD50 dermal Rabbit > 4000 mg/kg |
