Tricresyl phosphate
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Description
Colorless or pale yellow, oily liquid. Tricresyl phosphate is used as a solvent and plasticizer in Polyvinyl chloride, Cellulose nitrate, Mastic and some commercial lacquer formulations. It is also used industrially as a flame retardant, a Lead Scavenger in Gasoline, and a waterproofing agent.
Synonyms and Related Terms
TCP; tritolyl phosphate; phosphoric acid tris-(methylphenyl)ester; tri-o-cresyl phosphate; o-cresyl phosphate; o-tolyl phosphate; TOCP
Risks
- Flame resistant but decomposes with heat to produce toxic fumes.
- Toxic by ingestion, inhalation and skin absorption.
- Flash point = 230C
- ThermoFisher: https://www.fishersci.com/store/msds?partNumber=T3421&productDescription=TRICRESYL+PHOSPHATE+TECH+1L&vendorId=VN00033897&countryCode=US&language=en SDS]
Physical and Chemical Properties
Miscible with organic solvents and oils. Insoluble in water.
| Composition | (CH3C6H4O)3PO |
|---|---|
| CAS | 78-30-8 |
| Melting Point | 11 C |
| Density | 1.162 g/ml |
| Molecular Weight | mol. wt. =368.4 |
| Refractive Index | 1.556 |
| Boiling Point | 275-280 C |
Resources and Citations
- R. J. Gettens, G.L. Stout, Painting Materials, A Short Encyclopaedia, Dover Publications, New York, 1966
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 135
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Hermann Kuhn, Conservation and Restoration of Works of Art and Antiquities, Butterworths, London, 1986
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 9892