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Tris(2-ethylhexyl) phosphate

Tris(2-ethylhexyl) phosphate
Tris(2-ethylhexyl) phosphate
Chemical Name:
Tris(2-ethylhexyl) phosphate
TEHP;TRI(2-;AmgardTOF;flexoltof;Flexol TOF;NCI-C54751;kronitextof;DisflamolTOF;Kronitex tof;disflamolltof
Molecular Formula:
Formula Weight:
MOL File:

Tris(2-ethylhexyl) phosphate Properties

Melting point:
Boiling point:
215 °C4 mm Hg(lit.)
0.92 g/mL at 20 °C(lit.)
vapor pressure 
2.1 mm Hg ( 20 °C)
refractive index 
n20/D 1.444(lit.)
Flash point:
>230 °F
storage temp. 
Store below +30°C.
Specific Gravity
7 (H2O, 20℃)
Water Solubility 
<0.1 g/100 mL at 18 ºC
CAS DataBase Reference
78-42-2(CAS DataBase Reference)
NIST Chemistry Reference
2-Ethylhexanol phosphate (3:1)(78-42-2)
EPA Substance Registry System
Phosphoric acid, tris(2-ethylhexyl) ester(78-42-2)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xi
Risk Statements  38
Safety Statements  23-43-24/25
WGK Germany  2
RTECS  MP0770000
Autoignition Temperature 370 °C
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
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H332 Harmful if inhaled Acute toxicity,inhalation Category 4 Warning P261, P271, P304+P340, P312
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P321 Specific treatment (see … on this label).
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Tris(2-ethylhexyl) phosphate price More Price(10)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 289922 Tris(2-ethylhexyl) phosphate 97% 78-42-2 25ml $34.1 2018-11-13 Buy
Sigma-Aldrich 289922 Tris(2-ethylhexyl) phosphate 97% 78-42-2 500ml $68.5 2018-11-13 Buy
TCI Chemical P1022 Tris(2-ethylhexyl) Phosphate >98.0%(GC) 78-42-2 25mL $20 2018-11-22 Buy
TCI Chemical P1022 Tris(2-ethylhexyl) Phosphate >98.0%(GC) 78-42-2 500mL $66 2018-11-22 Buy
Alfa Aesar 015808 Trioctyl phosphate 78-42-2 50g $15 2018-11-20 Buy

Tris(2-ethylhexyl) phosphate Chemical Properties,Uses,Production


Solvent, antifoaming agent, plasticizer.

General Description

Clear colorless to pale yellow liquid with a slight sharp odor. Insoluble in water; Soluble in alcohol, acetone, and ether. Combustible.

Reactivity Profile

Tris(2-ethylhexyl) phosphate is incompatible with oxidizing materials. Tris(2-ethylhexyl) phosphate may soften or deteriorate certain plastics and elastomers. Tris(2-ethylhexyl) phosphate is incompatible with cellulose acetate and cellulose acetate butyrate.


Toxic by ingestion and inhalation.

Purification Methods

TEHP, in an equal volume of diethyl ether, is shaken with aqueous 5% HCl, and the organic phase is filtered to remove traces of pyridine (used as a solvent during manufacture) as its hydrochloride. This layer is shaken with aqueous Na2CO3, then water, and the ether is distilled off at room temperature. The ester is then filtered, dried for 12hours at 100o/15mm, and again filtered, then shaken intermittently for 2days with activated alumina (100g/L). It is decanted through a fine sintered-glass disc (with exclusion of moisture), and distilled under vacuum. [French & Muggleton J Chem Soc 5064 1957.] *Benzene can be used as a solvent (to give 0.4M solution) instead of ether. IR ( ): 1702, 1701, 481 and 478cm -1 [Bellamy & Becker J Chem Soc 475 1952]. The uranyl nitrate salt is purified by partial crystallisation from hexane [Siddall & Dukes J Am Chem Soc 81 790 1959, Siddall J Am Chem Soc 81 4176 1959]. [Beilstein 1 IV 1786.]

Tris(2-ethylhexyl) phosphate Preparation Products And Raw materials

Raw materials

Preparation Products

Tris(2-ethylhexyl) phosphate Suppliers

Global( 146)Suppliers
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Henan DaKen Chemical CO.,LTD.
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Mainchem Co., Ltd.
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Tris(2-ethylhexyl) phosphate Spectrum

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