9-octadecenoic acid

Octadec-9-enoic acid

2027-47-6

odorless

Mangrove

n-Octadec-9-ensaure

NCIMech_000314

NCIOpen2_008144

Oleic Acid_GurudeebanSatyavani

DTXSID7048118

AKOS030228306

MCULE-9547538729

NCI60_042203

SY101012

DB-041119

DB-253685

NS00081299

Q27116668

A pKa of 5.02(1) indicates oleic acid will exist almost entirely in the anion form at pH values of 5 to 9 and therefore volatilization from water surfaces is not expected to be an important fate process(2). Oleic acid is not expected to volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 5.46X10-7 mm Hg(3).
Literature: (1) Riddick JA et al; Organic Solvents 4th ed; NY: Wiley p. 379 (1986) (2) Doucette WJ; pp. 141-188 in Handbook of Property Estimation Methods for Chemicals. Boethling RS, Mackay D, eds. Boca Raton, FL: Lewis Publ (2000) (3) Daubert TE, Danner RP; Physical & Thermodynamic Properties of Pure Chemicals 4 NY: Hemisphere Pub Corp (1989)

The Koc of undissociated oleic acid is estimated as 340,000(SRC), using a log Kow of 7.64(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that oleic acid is expected to be immobile in soil. The pKa of oleic acid is 5.02(4), indicating that this compound will exist almost entirely in anion form in the environment and anions generally do not adsorb more strongly to soils containing organic carbon and clay than their neutral counterparts(5).
Literature: (1) Sangster J; LOGKOW Databank. Sangster Res Lab Montreal Quebec, Canada (1994) (2) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 4-9 (1990) (3) Swann RL et al; Res Rev 85: 17-28 (1983) (4) Riddick JA et al; Organic Solvents 4th ed; NY: Wiley p. 379 (1986) (5) Doucette WJ; pp. 141-188 in Handbook of Property Estimation Methods for Chemicals. Boethling RS, Mackay D, eds. Boca Raton, FL: Lewis Publ (2000)