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Mesitylene

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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
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil437.8 ± 0.8KAVGN/AAverage of 48 out of 54 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus225. ± 8.KAVGN/AAverage of 21 out of 22 values; Individual data points
Quantity Value Units Method Reference Comment
Ttriple228.42KN/ATaylor and Kilpatrick, 1955Crystal phase 1 phase; Uncertainty assigned by TRC = 0.01 K; TRC
Quantity Value Units Method Reference Comment
Tc639. ± 4.KAVGN/AAverage of 8 values; Individual data points
Quantity Value Units Method Reference Comment
Pc30.9 ± 0.4atmN/ATsonopoulos and Ambrose, 1995 
Pc31.206atmN/AKay and Pak, 1980Uncertainty assigned by TRC = 0.0031 atm; Visual, Table 2, mercury interface at room temperature.; TRC
Pc32.12atmN/AKay and Pak, 1980Uncertainty assigned by TRC = 0.0032 atm; Visual, Table 2, mercury interface at sample tempera; TRC
Pc30.86atmN/AAmbrose, Broderick, et al., 1967Uncertainty assigned by TRC = 0.06 atm; TRC
Pc32.17atmN/AAltschul, 1893Uncertainty assigned by TRC = 0.0968 atm; TRC
Quantity Value Units Method Reference Comment
Deltavap11.36 ± 0.02kcal/molAVGN/AAverage of 8 values; Individual data points

Enthalpy of vaporization

DeltavapH (kcal/mol) Temperature (K) Method Reference Comment
11.0 ± 0.31319.MMWiberg and Waldron, 1991Based on data from 296. - 342. K.; AC
10.4363.N/APark and Gmehling, 1989Based on data from 348. - 424. K.; AC
11.9264.AStephenson and Malanowski, 1987Based on data from 249. - 356. K.; AC
10.5369.AStephenson and Malanowski, 1987Based on data from 354. - 445. K. See also Forziati, Norris, et al., 1949.; AC
11.4286.MMChickos, Hyman, et al., 1981Based on data from 273. - 299. K.; AC
12.2262.RGHopke and Sears, 1948Based on data from 255. - 268. K.; AC

Antoine Equation Parameters

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

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Temperature (K) A B C Reference
354.64 - 438.874.193561569.622-63.572Forziati, Norris, et al., 1949, 2

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Reference Comment
2.27228.4Domalski and Hearing, 1996See also Radomska and Radomski, 1991.; AC
2.27228.4Radomska and Radomski, 1991AC

Enthalpy of phase transition

DeltaHtrs (kcal/mol) Temperature (K) Initial Phase Final Phase Reference Comment
2.2741228.42crystaline, IliquidTaylor and Kilpatrick, 1955, 2Metastable melting points at 221.46 K and 223.35 K.; DH

Entropy of phase transition

DeltaStrs (cal/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
9.955228.42crystaline, IliquidTaylor and Kilpatrick, 1955, 2Metastable; 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:


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.

Taylor and Kilpatrick, 1955
Taylor, R.D.; Kilpatrick, J.E., Entropy, Heat Capacity and Heats of Trans. of 1,3,5-Trimethylbenzene, J. Chem. Phys., 1955, 23, 1232-5. [all data]

Tsonopoulos and Ambrose, 1995
Tsonopoulos, C.; Ambrose, D., Vapor-Liquid Critical Properties of Elements and Compounds. 3. Aromatic Hydrocarbons, J. Chem. Eng. Data, 1995, 40, 547-558. [all data]

Kay and Pak, 1980
Kay, W.B.; Pak, S.C., Determination of the critical constants of high-boiling hydrocarbons. Experiments with gallium as a containing fluid, J. Chem. Thermodyn., 1980, 12, 673. [all data]

Ambrose, Broderick, et al., 1967
Ambrose, D.; Broderick, B.E.; Townsend, R., The Vapour Pressures above the Normal Boiling Point and the Critical Pressures of Some Aromatic Hydrocarbons, J. Chem. Soc. , 1967, 1967, 1967, 633-41. [all data]

Altschul, 1893
Altschul, M., The critical values of some organic compounds, Z. Phys. Chem., Stoechiom. Verwandtschaftsl., 1893, 11, 577. [all data]

Wiberg and Waldron, 1991
Wiberg, K.B.; Waldron, R.F., Lactones. 2. Enthalpies of hydrolysis, reduction, and formation of the C4-C13 monocyclic lactones. strain energies and conformations, J. Am. Chem. Soc., 1991, 113, 7697-7705. [all data]

Park and Gmehling, 1989
Park, So Jin; Gmehling, Juergen, Isobaric vapor-liquid equilibrium data for the binary systems 1,3,5-trimethylbenzene/N-formylmorpholine and m-xylene/N-formylmorpholine, J. Chem. Eng. Data, 1989, 34, 4, 399-401, https://doi.org/10.1021/je00058a008 . [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]

Forziati, Norris, et al., 1949
Forziati, Alphonse F.; Norris, William R.; Rossini, Frederick D., Vapor pressures and boiling points of sixty API-NBS hydrocarbons, J. RES. NATL. BUR. STAN., 1949, 43, 6, 555-17, https://doi.org/10.6028/jres.043.050 . [all data]

Chickos, Hyman, et al., 1981
Chickos, James S.; Hyman, Arthur S.; Ladon, Liina H.; Liebman, Joel F., Measurement and estimation of the heats of vaporization of hydrocarbons, J. Org. Chem., 1981, 46, 21, 4294-4296, https://doi.org/10.1021/jo00334a040 . [all data]

Hopke and Sears, 1948
Hopke, E.R.; Sears, G.W., Vapor Pressures of Trimethylbenzenes in the Low Pressure Region 1,2, J. Am. Chem. Soc., 1948, 70, 11, 3801-3803, https://doi.org/10.1021/ja01191a077 . [all data]

Forziati, Norris, et al., 1949, 2
Forziati, A.F.; Norris, W.R.; Rossini, F.D., Vapor Pressures and Boiling Points of Sixty API-NBS Hydrocarbons, J. Res. Natl. Bur. Stand. (U.S.), 1949, 43, 6, 555-563, https://doi.org/10.6028/jres.043.050 . [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]

Radomska and Radomski, 1991
Radomska, M.; Radomski, R., Phase diagrams in the binary systems of tetracyanoethylene with mesitylene, durene and pentamethylbenzene, Journal of Thermal Analysis, 1991, 37, 4, 693-704, https://doi.org/10.1007/BF01913148 . [all data]

Taylor and Kilpatrick, 1955, 2
Taylor, R.D.; Kilpatrick, J.E., Entropy, heat capacity, heats of transition of 1,3,5-trimethylbenzene, J. Chem. Phys., 1955, 23, 1232-1235. [all data]


Notes

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