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Merck
CN

93299

Tris(2-ethylhexyl) phosphate

Selectophore™, ≥99.0%

Synonym(s):

‘Trioctyl’ phosphate

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About This Item

Linear Formula:
[CH3(CH2)3CH(C2H5)CH2O]3P(O)
CAS Number:
78-42-2
Molecular Weight:
434.63
UNSPSC Code:
26111700
NACRES:
NB.61
PubChem Substance ID:
329770220
EC Number:
201-116-6
Beilstein/REAXYS Number:
1715839
MDL number:
MFCD00009491
Assay:
≥99.0% (GC)
≥99.0%
Form:
liquid

Key Documents

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Product Name

Tris(2-ethylhexyl) phosphate, Selectophore™, ≥99.0%

InChI key

GTVWRXDRKAHEAD-UHFFFAOYSA-N

InChI

1S/C24H51O4P/c1-7-13-16-22(10-4)19-26-29(25,27-20-23(11-5)17-14-8-2)28-21-24(12-6)18-15-9-3/h22-24H,7-21H2,1-6H3

SMILES string

CCCCC(CC)COP(=O)(OCC(CC)CCCC)OCC(CC)CCCC

vapor pressure

2.1 mmHg ( 20 °C)

description

for ion-selective electrodes

product line

Selectophore™

assay

≥99.0% (GC)
≥99.0%

form

liquid

refractive index

n20/D 1.443
n20/D 1.444 (lit.)

bp

215 °C/4 mmHg (lit.)

density

0.92 g/mL at 20 °C (lit.)

suitability

corresponds to standard for filter test

Quality Level

200

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Related Categories

Application

Plasticizer for solvent polymeric membrane electrodes.
Tris(2-ethylhexyl) phosphate may be used as an extractant in the extraction of scandium(III) and yttrium(III) from salicylate media.

General description

Visit our Sensor Applications portal to learn more.

Legal Information

Selectophore is a trademark of Merck KGaA, Darmstadt, Germany

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H315

Hazard Classifications

Skin Irrit. 2

Storage Class

10 - Combustible liquids

wgk

WGK 2

flash_point_f

338.0 °F

flash_point_c

170 °C

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
WXBF2754V
BCCG2995
BCCK1448
BCCD3689
BCCC9479

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Michihiro Kamijima et al.
[Nihon koshu eisei zasshi] Japanese journal of public health, 52(12), 1021-1031 (2006-02-07)
2-Ethyl-1-hexanol (2E1H) is a volatile organic compound (VOC) which seldom attracts attention in Japan. This study aimed at clarifying changes in its concentration over time, emission sources, and students' symptoms in classrooms of a university building where indoor air was
Separation of scandium (III) and yttrium (III) by tris (2-ethylhexyl) phosphate (TEHP).
Chhatre HM and Shinde MV
Talanta, 47(2), 413-419 (1998)
M B Gholivand et al.
Analytica chimica acta, 584(2), 302-307 (2007-03-28)
A novel potentiometric zirconium--PVC matrix membrane sensor incorporating bis(diphenylphosphino) ferrocene as an electroactive material and tris(2-ethylhexyl)phosphate as solvent mediator is described. In mixed acetate buffer solution of pH 4.8, the sensor displays a rapid and linear response for zirconium ion
W M Kluwe
Environmental health perspectives, 65, 271-278 (1986-03-01)
Chronic toxicity and carcinogenicity studies of several phthalic acid esters (PAEs) and compounds containing a 2-ethylhexyl moiety were conducted in Fischer 344 rats and B6C3F1 (hybrid) mice. The compounds studied were phthalic anhydride, di(2-ethylhexyl) phthalate, butyl benzyl phthalate, diallyl phthalate
Y Liu et al.
Solid state nuclear magnetic resonance, 2(6), 289-306 (1993-12-01)
31P Hahn spin echo line shape and proton line shape experiments are reported on bisphenol A polycarbonate (BPAPC)-tris(2-ethylehexyl)phosphate (TOP) systems to study the concentration and temperature dependence of the local dynamics. In an earlier 31P line shape study a lattice

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