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Sigma-Aldrich

Bis(2-ethylhexyl) phosphate

97%

Synonym(s):

Bis(2-ethylhexyl) hydrogen phosphate, Di(2-ethylhexyl) phosphate, HDEHP, HDEHPA, ‘Dioctyl’ phosphate

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About This Item

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
UNSPSC Code:
12352100
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

H302,H314

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - 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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Sigma-Aldrich

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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
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)
Po-Ching Lee et al.
Water research, 45(18), 5953-5958 (2011-09-23)
Effects of pH, extractant/diluent ratios, and metal concentrations on the extent of extractant dissolution during liquid-liquid extraction were investigated. Experimental result shows that D(2)EHPA dissolution increases dramatically at pH above 4, leveling off at pH 6-7. The phenomenon is consistent
Spas D Kolev et al.
Talanta, 78(3), 795-799 (2009-03-10)
A polymer inclusion membrane (PIM) is reported consisting of 45% (m/m) di(2-ethylhexyl)phosphoric acid (D2EHPA) immobilized in poly(vinyl chloride) (PVC) for use as a solid phase absorbent for selectively extracting Zn(II) from aqueous solutions in the presence of Cd(II), Co(II), Cu(II)
Gulsin Arslan et al.
Journal of hazardous materials, 165(1-3), 729-735 (2008-11-28)
The facilitated transport of chromium(III) through activated composite membrane (ACM) containing di-(2-ethylhexyl) phosphoric acid (DEHPA) was investigated. DEHPA was immobilised by interfacial polymerisation on polysulfone layer which was deposited on non-woven fabric by using spin coater. Then, ACM was characterised
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