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Tris(2-ethylhexyl) phosphate

Chemical Name:
Tris(2-ethylhexyl) phosphate
Molecular Formula:
Molecular Weight:
MOL File:
MSDS File:

Tris(2-ethylhexyl) phosphate 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.)
Flash point >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)
Indirect Additives used in Food Contact Substances TRI(2-ETHYLHEXYL) PHOSPHATE
FDA 21 CFR 175.105
EWG's Food Scores 1
NIST Chemistry Reference 2-Ethylhexanol phosphate (3:1)(78-42-2)
EPA Substance Registry System Tris(2-ethylhexyl) phosphate (78-42-2)


Risk and Safety Statements

Signal word  Warning
Hazard statements  H315-H319-H332
Precautionary statements  P261-P280a-P304+P340-P305+P351+P338-P312a-P321-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313
Hazard Codes  Xi
Risk Statements  38
Safety Statements  23-43-24/25
WGK Germany  2
RTECS  MP0770000
Autoignition Temperature 370 °C
HS Code  29190090
Toxicity LD50 orally in Rabbit: 37000 mg/kg LD50 dermal Rabbit 20000 mg/kg

Tris(2-ethylhexyl) phosphate price More Price(19)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 8.21202 Tris(2-ethylhexyl) phosphate for synthesis 78-42-2 100mL $36 2022-05-15 Buy
Sigma-Aldrich 8.21202 Tris(2-ethylhexyl) phosphate for synthesis 78-42-2 1L $107 2022-05-15 Buy
Sigma-Aldrich 289922 Tris(2-ethylhexyl) phosphate 97% 78-42-2 25ml $37.4 2022-05-15 Buy
Sigma-Aldrich 289922 Tris(2-ethylhexyl) phosphate 97% 78-42-2 500ml $75.2 2022-05-15 Buy
TCI Chemical P1022 Tris(2-ethylhexyl) Phosphate >98.0%(GC) 78-42-2 25mL $22 2022-04-27 Buy
Product number Packaging Price Buy
8.21202 100mL $36 Buy
8.21202 1L $107 Buy
289922 25ml $37.4 Buy
289922 500ml $75.2 Buy
P1022 25mL $22 Buy

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

Chemical Properties

Tris(2-ethylhexyl) phosphate, a clear, viscous liquid, is used as a component of vinyl stabilizers, grease additives, and flame-proofing compositions; however, it is used primarily as a plasticizer for vinyl plastic and synthetic rubber compounds.
Tris(2-ethylhexyl) phosphate
Tris(2-ethylhexyl) phosphate has been employed as a specialty flameretardant plasticizer for vinyl compositions where low temperature flexibility is critical, eg, in military tarpaulins. It can be included in blends with general purpose plasticizers such as phthalate esters to improve low temperature flexibility.


Solvent, antifoaming agent, plasticizer.


Tris(2-ethylhexyl) Phosphate is used as a phosphorous flame retardant. Used as a plasticizer in the preparation of a new potentiometric membrane sensor.

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

Global( 256)Suppliers
Supplier Tel Email Country ProdList Advantage
Zhangjiagang Xinya Chemical Co., Ltd.
+86-512-58980899 +8613915696858 China 44 58
Henan DaKen Chemical CO.,LTD.
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Henan Tianfu Chemical Co.,Ltd.
0371-55170693 China 22021 55
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View Lastest Price from Tris(2-ethylhexyl) phosphate manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-09-30 Tris(2-ethylhexyl) phosphate
US $10.00 / KG 1KG 99% 10 mt Hebei Guanlang Biotechnology Co., Ltd.
2021-07-13 Tris(2-ethylhexyl) phosphate
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
2021-07-10 Tris(2-ethylhexyl) phosphate
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
PHOSPHORIC ACID TRIS(2-ETHYLHEXYL) ESTER PHOSPHORIC ACID TRIOCTYL ESTER TRI(2-ETHYLHEXYL)PHOSPHATE 'TRIOCTYL' PHOSPHATE 1-Hexanol, 2-Ethyl-, phosphate 2-ethyl-1-hexanophosphate AmgardTOF Disflamoll TOF disflamolltof DisflamolTOF Flexol plasticizer TOF Flexol TOF flexoltof Kronitex tof kronitextof NCI-C54751 phosphatedetris(ethyl-2hexyle) Phosphoric acid, tris(ethylhexyl) ester Tri(ethylhexyl) phosphate Tri(2-ethylhexyl)pho Phosphoric Acid Trioctyl Ester Phosphoric Acid Tris(2-ethylhexyl) Ester Trioctyl Phosphate 2-ethylhexanol phosphate triester 2-ETHYL-1-HEXANOL PHOSPHATE 2-ETHYL-1-HEXANOL TRIPHOSPHATE Tris-(2-ethylh Tris(2-ethylhexyl) phosphate 97% triethylhexylphosphate tris(2-ethylhexy)phosphate Tris-(2-ethylhexyl)fosfat Tris(ethylhexyl) phosphate tris-2(2-ethylhexyl)fosfat(czech) Tris(2-ethyl)phosphate TrioctylPhosphate Tri(2-Chlorohexyl) Phosphate Phosphorsuretris-(2-ethylhexyl)-ester TRIS(2-ETHYLHEXYL) PHOSPHATE 98+% O,O,O-Tris(2-ethylhexyl)phosphate Phosphoric acid tris(2-ethylhexyl) Tris(2-ethylhexyl) phosphate,‘Trioctyl’ phosphate TRI(2- tris(2-Ethylhexyl) Phosphate @100 μg/mL in Toluene Tris(2-ethylhexyl)Phosphate> Tris(2-Ethylhexyl) Phosphate,99% TRIS(2-ETHYLHEXYL) PHOSPHATE FOR SYNTHES Tris(2-ethyL Tris (2-Ethylhexyl) Phosphate [Tri Octyl Phosphate- TOP] tris(2-ethylhexyl) phosphate/Tri-iso-octyl Phosphate/trioctyl phosphate/TOP TRIS(2-ETHYLHEXYL) PHOSPHATE TRIOCTYL PHOSPHATE TEHP TOP 78-42-2 C24H51O4P CH3CH23CHC2H5CH2O3PO C19H51O4P Phosphates (Plasticizer) Plasticizer Ion Sensor Materials