PRODUCT IDENTIFICATION
H.S. CODE
TOXICITY
Benzene Phosphorus Oxydichloride; BPOD;
CLASSIFICATION
PHYSICAL AND CHEMICAL PROPERTIES
AUTOIGNITION
REFRACTIVE INDEX
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 as formulations prepared 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. Phenyldichlorophosphine oxide is an useful intermediate in manufacturing Phosphorus flame retardants, plasticizers, antifoaming agents, scale inhibitors, and additive for cellulose, polyester, polyurethane and oil. It is utilized in hydrolysis reaction to form phosphorous acid. The chlorine atoms are useful to make amides and esters by the reaction with alcohols and amines.
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