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237825

Sigma-Aldrich

Bis(2-ethylhexyl) phosphate

97%

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Synonym(s):
Bis(2-ethylhexyl) hydrogen phosphate, Di(2-ethylhexyl) phosphate, HDEHP, HDEHPA, ‘Dioctyl’ phosphate
Linear Formula:
[CH3(CH2)3CH(C2H5)CH2O]2P(O)OH
CAS Number:
Molecular Weight:
322.42
Beilstein/REAXYS Number:
1712988
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

97%

form

liquid

refractive index

n20/D 1.443 (lit.)

mp

−60 °C (lit.)

solubility

ethanol: soluble 100 mg/mL, clear

density

0.965 g/mL at 25 °C (lit.)

SMILES string

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

InChI

1S/C16H35O4P/c1-5-9-11-15(7-3)13-19-21(17,18)20-14-16(8-4)12-10-6-2/h15-16H,5-14H2,1-4H3,(H,17,18)

InChI key

SEGLCEQVOFDUPX-UHFFFAOYSA-N

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Quality Level

100

Quality Level

200

Quality Level

-

Quality Level

-

solubility

ethanol: soluble 100 mg/mL, clear

solubility

-

solubility

-

solubility

-

form

liquid

form

viscous liquid (clear)

form

-

form

-

density

0.965 g/mL at 25 °C (lit.)

density

0.985 g/mL at 20 °C (lit.)

density

0.914 g/mL at 25 °C (lit.)

density

0.92 g/mL at 20 °C (lit.)

mp

−60 °C (lit.)

mp

-

mp

-

mp

-

General description

Bis(2-ethylhexyl)phosphate (HDEHP or HDEHPA) is an organophosphorus compound that has quaternarystructure. It can be generally used as lubricant additive, antiwear additive,and surfactants.

Application

Bis(2-ethylhexyl) phosphate is used:
  • To facilitated transport of chromium(III)through activated composite membrane (ACM).

pictograms

CorrosionExclamation mark

signalword

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Skin Corr. 1B

Storage Class

8A - Combustible, corrosive hazardous materials

wgk_germany

WGK 1

flash_point_f

266.0 °F

flash_point_c

130 °C

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


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Purification of di-(2-ethylhexyl) phosphoric acid by precipitation of copper (II) di-(2-ethylhexyl) phosphate.
Partridge JA and Jensen RC.
J. Inorg. Nucl. Chem., 31(8), 2587-2589 (1969)
Marco Iammarino et al.
Veterinaria italiana, 54(1), 41-47 (2018-04-10)
Strontium-90 (90Sr) is a fission product, resulting from the use of uranium and plutonium in nuclear reactors and weapons. Consequently, it may be found in the environment as a consequence of nuclear fallouts, nuclear weapon testing, and not correct waste
R Gonzalez et al.
Chemosphere, 81(9), 1164-1169 (2010-09-22)
This work presents the investigation of Ni(II) extraction from aqueous solution through pseudo-emulsion based hollow fiber strip dispersion (PSEHFSD) containing the mixture 2-hydroxy-5-nonylbenzaldehyde oxime+di(2-ethylhexyl) phosphoric acid/Exxsol D100 as extractant in the form of a pseudo-emulsion with H₂SO₄. The organic and
P Venkateswaran et al.
Journal of environmental sciences (China), 19(12), 1446-1453 (2008-02-19)
Permeation of Cu(II) from its aqueous solution through a supported liquid membrane (SLM) containing di(2-ethylhexyl)phosphoric acid (D2EHPA) carrier dissolved in coconut oil has been studied. The effects of Cu(II), pH (in feed), H2SO4 (stripping) and D2EHPA (in membrane) concentrations have
P K Parhi et al.
Journal of hazardous materials, 172(2-3), 773-779 (2009-08-12)
The extraction efficiencies of three phosphoric acid derivatives (D2EHPA, PC-88A and Cyanex 272) for Cd in supported liquid membrane (SLM) have been reported. The equilibrium study indicated the release of two moles of H(+) ions from the extractant for extraction

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