Oleic Acid

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Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tfus289.45KN/AMod, Magne, et al., 1962Uncertainty assigned by TRC = 0.3 K; TRC
Tfus289.45KN/AMod, Magne, et al., 1960Uncertainty assigned by TRC = 0.5 K; TRC

Reduced pressure boiling point

Tboil (K) Pressure (bar) Reference Comment
467.70.001Aldrich Chemical Company Inc., 1990BS

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Method Reference Comment
83.8456.AStephenson and Malanowski, 1987Based on data from 441. to 633. K.; AC

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
449.7 to 633.5.048422555.604-127.258Stull, 1947Coefficents calculated by NIST from author's data.

Enthalpy of fusion

ΔfusH (kJ/mol) Temperature (K) Reference Comment
39.6286.5Domalski and Hearing, 1996AC

Enthalpy of phase transition

ΔHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
39.600286.45crystaline, αliquidSato, Yoshimoto, et al., 1990High-melting, α-form.; DH
51.900289.35crystaline, βliquidSato, Yoshimoto, et al., 1990Low-melting, β-form.; DH

Entropy of phase transition

ΔStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
138.4286.45crystaline, αliquidSato, Yoshimoto, et al., 1990High-melting,; DH
179.3289.35crystaline, βliquidSato, Yoshimoto, et al., 1990Low-melting,; DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Go To: Top, Phase change data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Mod, Magne, et al., 1962
Mod, R.R.; Magne, F.C.; Skau, E.L., J. Chem. Eng. Data, 1962, 7, 31. [all data]

Mod, Magne, et al., 1960
Mod, R.R.; Magne, F.C.; Skau, E.L., Pure Acid-Free Amides of C18 Fatty Acids. Their Preparation and Binary Freezing Point Behavior, J. Chem. Eng. Data, 1960, 5, 478. [all data]

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

Sato, Yoshimoto, et al., 1990
Sato, K.; Yoshimoto, N.; Suzuki, M.; Kobayashi, M.; Kaneko, F., Structure and transformation in polymorphism of petroselinic acid (cis-w-12-octadecenoic acid), J. Phys. Chem., 1990, 94, 3180-3185. [all data]


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