PRODUCT IDENTIFICATION

CLASSIFICATION

PHYSICAL AND CHEMICAL PROPERTIES

22 - 25 C

REFRACTIVE INDEX

EXTERNAL LINKS & GENERAL DESCRIPTION

USA.gov - Triphenyl phosphite

Wikipedia Linking - Triphenyl phosphite

Google Scholar Search - Triphenyl phosphite

U.S. National Library of Medicine - Triphenyl phosphite

PubChem Compound Summary - Triphenyl phosphite

IPCS INCHEM -  Triphenyl phosphite

KEGG (Kyoto Encyclopedia of Genes and Genomes) -  Triphenyl phosphite

ChEBI (http://www.ebi.ac.uk/chebi/) -  Triphenyl phosphite

NCBI (http://www.ncbi.nlm.nih.gov/) -  Triphenyl phosphite

Material Safety Data Sheet - Triphenyl phosphite

EPA - Substance Registry Services - Triphenyl phosphite

Local:
Phosphorous acid  is a clear to yellowish crystalline solid with a garlic like odour melting at 73 C, decomposes at 200 C. It is very soluble in water and in alcohol. This compound contains one direct P-H bond (which is not very acidic) and only two hydrogens bonded to oxygen (which are acidic). The structure of this material is more correctly written (HO)₂HPO. For this reason, this dibasic acid forms two series of salts, one containing the dihydrogen phosphite ion, H₂PO₃ ^- , and the other containing the hydrogen phosphite ion, HPO₃^2-. It is prepared by hydrolysis of phosphorus trichloride (or tetraphosphorus hexaoxide) with alcohols or phenols. Phosphorous acid esters are called phosphite with the formula (RO)₃P. Phosphorous acid and phosphite are used as reducing agents in chemical industry because of easy oxidation property to phosphoric acid. They are used as antioxidant, stabilizer and chelating agent in plastic system. They are used as solvent in paint and as flame retardant on fibres. They are used as a chemical intermediate in the production of pharmaceutical ingredients, pesticides, optical brighteners and in lubricant additives and adhesives. Tris(nonylphenyl) Phosphite is used as a heat stabilizer for polymers especially for unvulcanized rubbers and polyvinylchloride. It is a phenolic antioxidant maintain the performance integrity, color stability and processing stability of ABS, polycarbonate, polyolefins and vulcanized rubber.

TPP, the ester of phosphorous acid and phenol, has versatile applications; used as a ligand in organometallic chemistry, antiwear and antifriction agent for industrial oils and lubricants, antioxidant and stabilizer for paints and polymers, as a catalyst for the preparation of polymers, as an intermediate to produce target materials in the organic synthesis.

APPEARANCE

PURITY

98.0% min

P CONTENT

10.0% min

REFRACTIVE INDEX

ACID NUMBER

COLOR

1 max (Gardner)

HEAT LOSS

0.5% max

9, (Packing Group:III)

HAZARD OVERVIEW

GHS (Globally Harmonised System) Classification: Skin irritation. Eye irritation. Acute aquatic toxicity. Hazard statements: Harmful if swallowed. Causes serious eye irritation. Causes skin irritation. May cause an allergic skin reaction. Very toxic to aquatic life with long lasting effects.

GHS

PICTOGRAMS

HAZARD STATEMENTS

H302-H319-H315-H317-H410

P STATEMENTS

P273-P280-P301 + P330 + P331-P305 + P351 + P338-P302 + P352

RISK PHRASES

36/38-50/53

SAFETY PHRASES

26-36