Tricresyl Phosphate
Products Description of Tricresyl Phosphate CAS#1330-78-5
Tricresyl Phosphate (TCP) is a mixture with a slight pungent odor; among its three isomers, the ortho and meta isomers are liquids, while the para isomer is a crystalline solid. It can be prepared by reacting cresol with phosphorus oxychloride in the presence of an aluminum catalyst.
TCP has two main applications: it is used to recover phenol residues from gas plant wastewater, and it serves as a plasticizer in the plastics industry. Plasticizers are substances that enhance the flexibility of plastic materials—adjusting the amount of plasticizer added allows for wide-ranging changes to plastics’ flexibility, hardness, water resistance, and flammability. In some cases, up to 50% TCP is added to polyvinyl chloride[1].
Notably, TCP is toxic to humans: ingestion, inhalation, or even skin absorption can lead to neuropathy, hand and foot paralysis, and may cause death in humans and animals.
Parameters
Melting point | <-40°C |
Boiling point | 265 °C10 mm Hg(lit.) |
density | 1.143 g/mL at 25 °C(lit.) |
Pour Point | -28 |
vapor pressure | 0.03 mm Hg ( 25 °C) |
refractive index | n20/D 1.555(lit.) |
Fp | >230 °F |
storage temp. | Store below +30°C. |
solubility | organic solvents: miscible(lit.) |
form | Powder |
color | White to off-white |
Water Solubility | INSOLUBLE |
Merck | 14,9763 |
Dielectric constant | 4.0（80℃） |
Stability: | Stable. Incompatible with strong oxidizing agents. May soften some plastics. Hydrolyzes slowly under alkaline conditions. |
InChIKey | ISNNXHQBIBWQHG-UHFFFAOYSA-N |
LogP | 5.93 |
Surface tension | 40.9mN/m at 20°C |
CAS DataBase Reference | 1330-78-5(CAS DataBase Reference) |
EPA Substance Registry System | Tricresyl phosphate (1330-78-5) |
Safety Information
Hazard Codes | Xn,N,T |
Risk Statements | 21/22-51/53-39/23/24/25-62-50/53 |
Safety Statements | 28-61-45-28A-20/21-60-36/37 |
RIDADR | |
WGK Germany | 2 |
RTECS | TD0175000 |
Autoignition Temperature | 770 °F |
TSCA | Yes |
HS Code | 2919 90 00 |
HazardClass | 6.1 |
PackingGroup | II |
Hazardous Substances Data | 1330-78-5(Hazardous Substances Data) |
Toxicity | cat,LD50,skin,1500mg/kg (1500mg/kg),BEHAVIORAL: ATAXIAPERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITHOUT ANESTHESIA (USUALLY NEUROMUSCULAR BLOCKAGE),Toxicology Letters. Vol. 1000(Sp, |
Product Application of Tricresyl Phosphate CAS#1330-78-5
Tricresyl Phosphate is used as a plasticizer in vinyl plastics production, a flame retardant, and a solvent for nitrocellulose. It also finds application in cellulosic molding compositions, serves as an additive in extreme pressure lubricants, and acts as a nonflammable fluid in hydraulic systems. Additionally, it functions as a lead scavenger in gasoline (per Yust, Bame, US 2889212, 1959 to Shell) and is used to sterilize specific surgical instruments.
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