Triphenylphosphine CAS#603-35-0

Products Description of Triphenylphosphine CAS#603-35-0

Triphenylphosphine, molecular formula is C18H15P, molecular weight is 262.30. White to off-white crystalline powder, easily soluble in ether, soluble in benzene, chloroform, glacial acetic acid, slightly soluble in ethanol, almost insoluble in water. Melting point is 78Chemicalbook.5～81.5℃. Boiling point is higher than 360℃ (measured in inert gas). Triphenylphosphine is an important ligand of homogeneous catalysts used in petrochemical and fine chemical production, and new uses are constantly being developed, and demand is increasing year by 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

Product Application of  Triphenylphosphine CAS#603-35-0

Triphenylphosphine is first sulfonated with oleum to form the trisulfonic acid.
Triphenylphosphine can be used in Wittig synthesis. It is a standard ligand in homogeneous catalysis.
Triphenylphosphine is used in the synthesis of an organophosphorus intermediate, trimethyl phosphite in ester exchange method. And then a series of organophosphorus pesticides such as dichlorvos, monocrotophos and phosphamidon can be further obtained.
In addition, it can be used as stabilizers in the synthesis of rubber and resins, antioxidants in polyvinyl chloride, and raw material in the synthesis of alkyd resins and polyester resins.

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