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Butylated Hydroxytoluene

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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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.

Quantity Value Units Method Reference Comment
Tboil538.2KN/AWeast and Grasselli, 1989BS
Quantity Value Units Method Reference Comment
Tfus344.KN/AInozemtsev, Liakumovich, et al., 1972Uncertainty assigned by TRC = 0.2 K; TRC
Tfus342.86KN/AWitschonke, 1954Uncertainty assigned by TRC = 0.25 K; TRC
Tfus343.KN/AWitschonke, 1954Uncertainty assigned by TRC = 0.15 K; TRC
Quantity Value Units Method Reference Comment
Deltasub91.9 ± 3.2kJ/molCda Silva, Matos, et al., 2001AC
Deltasub88.0 ± 0.8kJ/molGSVerevkin, 1999Based on data from 298. - 338. K.; AC
Deltasub117.3kJ/molCBertholon, Giray, et al., 1971ALS
Deltasub113.1kJ/molN/ABertholon, Giray, et al., 1971DRB

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
87.8318.AStephenson and Malanowski, 1987Based on data from 303. - 343. K.; AC
61.5373.AStephenson and Malanowski, 1987Based on data from 358. - 536. K. See also Stull, 1947.; 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
359.0 - 535.75.050622451.662-49.846Stull, 1947Coefficents calculated by NIST from author's data.

Enthalpy of sublimation

DeltasubH (kJ/mol) Temperature (K) Method Reference Comment
86.8 ± 0.8319.GSVerevkin, 1999Based on data from 298. - 338. K.; AC
87.8318.GSStephenson and Malanowski, 1987Based on data from 303. - 343. K. See also Fel'dshtein and Kuz'minskii, 1971.; AC

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Method Reference Comment
19.85341.7DSCVerevkin, 1999AC
23.85343.7DTAInozemtsev, Liakumovich, et al., 1972AC

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:


References

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.

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Inozemtsev, Liakumovich, et al., 1972
Inozemtsev, P.P.; Liakumovich, A.G.; Gracheva, Z.D., Russ. J. Phys. Chem., 1972, 46, 6, 914. [all data]

Witschonke, 1954
Witschonke, C.R., Freezing point and purity data for some organic compounds, Anal. Chem., 1954, 26, 562-4. [all data]

da Silva, Matos, et al., 2001
da Silva, Manuel A.V. Ribeiro; Matos, M. Agostinha R.; Miranda, Margarida S.; Sousa, M. Helena F.A.; dos Santos, Rui M. Borges; Bizarro, Magda M.; Simões, José A. Martinho, Structural Chemistry, 2001, 12, 2, 171-181, https://doi.org/10.1023/A:1016600727116 . [all data]

Verevkin, 1999
Verevkin, Sergey P., Thermochemistry of phenols: buttress effects in sterically hindered phenols, The Journal of Chemical Thermodynamics, 1999, 31, 11, 1397-1416, https://doi.org/10.1006/jcht.1999.0466 . [all data]

Bertholon, Giray, et al., 1971
Bertholon, G.; Giray, M.; Perrin, R.; Vincent-Falquet-Berny, M.F., No. 532. - Etude physicochimique des phenols. OX. - Ethanlpies de combustion et energies de resonance des alcoyl et aryphenols, Bull. Soc. Chim. France, 1971, 3180-3187. [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]

Fel'dshtein and Kuz'minskii, 1971
Fel'dshtein, L.S.; Kuz'minskii, A.S., Kauch. Rezina, 1971, 30, 11, 15. [all data]


Notes

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