TRI-p-TOLYLPHOSPHINE

PRODUCT IDENTIFICATION

CAS NO. 1038-95-5

TRI-p-TOLYLPHOSPHINE

EINECS NO.

213-863-5

FORMULA C21H21P
MOL WT. 304.37

H.S. CODE

 

TOXICITY

 
SYNONYMS Tris(p-tolyl)phosphine; Phosphorus tri-p-tolyl;
Tris(4-methylphenyl) phosphine; Tris(4-tolyl)phosphine; Tri-(4-Methylphenyl) phosphine; Tri(4-Tolyl) phosphine;
SMILES

 

CLASSIFICATION

ORGANOPHOSPHINES /

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE White powder

MELTING POINT

147 - 149 C
BOILING POINT  
SPECIFIC GRAVITY  

SOLUBILITY IN WATER

 
pH  
VAPOR DENSITY  
AUTOIGNITION

 

REFRACTIVE INDEX

 

NFPA RATINGS Health: 2; Flammability: 0; Reactivity: 0
FLASH POINT

 

STABILITY Stable under ordinary conditions
GENERAL DESCRIPTION & APPLICATIONS

Phosphine, also called Hydrogen Phosphide, PH3, is a colourless, poisonous, spontaneously flammable gas, with a disagreeable, garlic-like odour; melting point -133.5 C, boiling point -87.4 C. Phosphine is manufactured by the hydrolysis of metal phosphides, by the electrolysis of phosphorus in the presence of hydrogen, or by the phosphorus-steam reaction. Phosphine has the structure of ammonia (NH3) but with phosphorus in place of nitrogen. It is slightly soluble in cold water and soluble in alcohol. Phosphine is less soluble in water than ammonia. Phosphine is used in the synthesis of organophosphines and phosphonium derivatives and as a dopant in the manufacture of semiconductors. Aluminium or magnesium phosphide are used in the formulation for fumigation in pest control, and zinc phosphide is used as a rodenticide. Phophene is a starting material for the preparation of pesticides and flame retardants. Organophosphines are used as solvents for the extraction and separation processes, flame retardants, and in formulating fumigants and electronics applications of semiconductor manufacturing. Tertiary alkylphosphines act as chemical intermediate and catalyst in the production of industrial acids, alcohols, flavors & fragrances, and pharmaceuticals. Phosphonium describes a univalent radical, PH4. Quaternary phosphonium salts, obtained from tertiary alkylphosphines with the treatment with alkyl or aromatic halides, are replacing phase transfer catalysts and biocides functions for quaternary ammonium salts due to more effective performance and higher thermal stability. Phosphonium salts are used as epoxy curing agents. A variety of phosphine transition metal complexes including chiral complexes are synthesized as the very reactive and versatile homogeneous catalysts and stereospecific as well.

SALES SPECIFICATION

APPEARANCE

White crystals

ASSAY

98.0% min

MELTING POINT 147 - 149 C

RESIDUE ON IGNITION

0.1% max

LOSS ON DRYING

0.5% max

TRANSPORTATION
PACKING 40kgs in fiber drum
HAZARD CLASS Not regulated
UN NO.  
OTHER INFORMATION
Hazard Symbols: XI, Risk Phrases: 36/37/38, Safety Phrases: 26-36