Mesitylene

Data at NIST subscription sites:

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.


Phase change data

Go To: Top, References, Notes

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
Δvap11.36 ± 0.02kcal/molAVGN/AAverage of 8 values; Individual data points

Enthalpy of vaporization

ΔvapH (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)

View plot Requires a JavaScript / HTML 5 canvas capable browser.

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

Enthalpy of fusion

ΔfusH (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

ΔHtrs (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

ΔStrs (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

Go To: Top, Phase change data, References