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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:
298-07-7
Molecular Weight:
322.42
Beilstein:
1712988
EC Number:
206-056-4
MDL number:
MFCD00009492
PubChem Substance ID:
24854273
NACRES:
NA.22

Quality Level

100

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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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
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H312 - H314

Hazard Classifications

Acute Tox. 4 Dermal - Skin Corr. 1B

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

266.0 °F

Flash Point(C)

130 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

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  4. Is Product 237825, Bis(2-ethylhexyl) phosphate, a solid or a liquid?

    Although the product is sold by weight, it is a liquid. The density is 0.965 g/mL at 25 °C(lit.).

  5. Is Product 237825, Bis(2-ethylhexyl) phosphate, also known as HDEHP?

    Yes. HDEHP is a synonym for Bis(2-ethylhexyl) phosphate.

  6. What is the solubility of Product 237825, Bis(2-ethylhexyl) phosphate?

    This product is soluble in ethanol (100 mg/mL), yielding a clear solution.

  7. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

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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
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
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
Mahdi Chiha et al.
Ultrasonics sonochemistry, 17(2), 318-325 (2009-10-06)
The aim of this work was to study the emulsification assisted by ultrasonic probe (22.5kHz) and investigate the removal of copper(II) ions from aqueous solution using water-in-oil-in-water (W/O/W) emulsion liquid membrane process (ELM). The membrane was prepared by dissolving the
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