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Tris(2-ethylhexyl) phosphate CAS#78-42-2

CAS Number: 78-42-2

Chemical Formula: C24H51O4P

Synonyms:

2-ethyl-1-hexanophosphate

PHOSPHORIC ACID TRIS(2-ETHYLHEXYL) ESTER

PHOSPHORIC ACID TRIOCTYL ESTER

Appearance: Transperant Liquid

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

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Product Details

Tris(2-ethylhexyl) phosphate CAS#78-42-2

Tris(2-ethylhexyl) phosphate is a clear, viscous liquid that serves as an ingredient in vinyl stabilizers, grease additives, and flame-retardant formulations. Its primary application, however, is as a plasticizer for vinyl plastics and synthetic rubber compounds.

This compound is also utilized as a specialized flame-retardant plasticizer in vinyl products where low-temperature flexibility is a key requirement—for instance, in military tarpaulins. When blended with general-purpose plasticizers like phthalate esters, it can further enhance the low-temperature flexibility of the resulting mixtures.

Tris(2-ethylhexyl) phosphate Chemical Properties
Melting point	-70°C
Boiling point	215 °C4 mm Hg(lit.)
density	0.92 g/mL at 20 °C(lit.)
vapor pressure	2.1 mm Hg ( 20 °C)
refractive index	n20/D 1.444(lit.)
Fp	>230 °F
storage temp.	Store below +30°C.
solubility	<0.001g/l
form	Liquid
Specific Gravity	0.93
color	Colourless
PH	7 (H2O, 20℃)
Water Solubility	<0.1 g/100 mL at 18 ºC
BRN	1715839
CAS DataBase Reference	78-42-2(CAS DataBase Reference)
NIST Chemistry Reference	2-Ethylhexanol phosphate (3:1)(78-42-2)
EPA Substance Registry System	Tris(2-ethylhexyl) phosphate (78-42-2)
ECETOC JACC REPORT	Tris(2-ethylhexyl) phosphate (78-42-2)

Safety Information

Hazard Codes	Xi
Risk Statements	38
Safety Statements	23-43-24/25
WGK Germany	2
RTECS	MP0770000
Autoignition Temperature	370 °C
TSCA	TSCA listed
HS Code	29190090
Hazardous Substances Data	78-42-2(Hazardous Substances Data)
Toxicity	LD50 orally in Rabbit: 37000 mg/kg LD50 dermal Rabbit 20000 mg/kg

Product Application of Tris(2-ethylhexyl) phosphate CAS#78-42-2

Tris(2-ethylhexyl) Phosphate acts as a phosphorus-based flame retardant. It is also employed as a plasticizer in the fabrication of novel potentiometric membrane sensors.

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