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Methylal

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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
Tboil315.3 ± 0.5KAVGN/AAverage of 10 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus168.KN/ATimmermans, 1935Uncertainty assigned by TRC = 2. K; TRC
Tfus168.35KN/ATimmermans, 1934Uncertainty assigned by TRC = 0.5 K; TRC
Tfus168.15KN/ATimmermans and Martin, 1928Uncertainty assigned by TRC = 0.4 K; TRC
Tfus168.35KN/ATimmermans, 1911Uncertainty assigned by TRC = 0.3 K; TRC
Quantity Value Units Method Reference Comment
Ttriple168.03KN/AWilhoit, Chao, et al., 1985Uncertainty assigned by TRC = 0.05 K; TRC
Ttriple168.01KN/AMcEachern and Kilpatrick, 1964Uncertainty assigned by TRC = 0.02 K; TRC
Quantity Value Units Method Reference Comment
Tc480.6KN/AKobe and Mathews, 1970Uncertainty assigned by TRC = 1. K; TRC
Tc488.4KN/ABourgou, 1924Uncertainty assigned by TRC = 6. K; TRC
Tc496.8KN/APawlewski, 1883Uncertainty assigned by TRC = 10. K; TRC
Quantity Value Units Method Reference Comment
Pc39.50barN/AKobe and Mathews, 1970Uncertainty assigned by TRC = 0.7092 bar; TRC
Quantity Value Units Method Reference Comment
rhoc4.69mol/lN/AKobe and Mathews, 1970Uncertainty assigned by TRC = 0.39 mol/l; TRC
Quantity Value Units Method Reference Comment
Deltavap29.6kJ/molN/AAlbert, Hahnenstein, et al., 2001Based on data from 273. - 357. K.; AC
Deltavap28.89 ± 0.21kJ/molVMcEachern and Kilpatrick, 1964, 2ALS

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
28.886298.15N/AMcEachern and Kilpatrick, 1964, 3P = 53.14 kPa; DH
31.2288.AStephenson and Malanowski, 1987Based on data from 273. - 316. K.; AC
29.8288.AStephenson and Malanowski, 1987Based on data from 273. - 318. K.; AC
30.3305.N/ABrazhnikov, Peshchenko, et al., 1976Based on data from 296. - 314. K.; AC
30.1288.N/ANicolini and Laffitte, 1949Based on data from 273. - 308. K.; AC

Entropy of vaporization

DeltavapS (J/mol*K) Temperature (K) Reference Comment
96.9298.15McEachern and Kilpatrick, 1964, 3P; DH

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
273. - 308.4.036751068.35-50.409Nicolini and Laffitte, 1949, 2Coefficents calculated by NIST from author's data.

Enthalpy of fusion

DeltafusH (kJ/mol) Temperature (K) Reference Comment
8.3316168.01McEachern and Kilpatrick, 1964, 3DH
8.33168.Domalski and Hearing, 1996AC

Entropy of fusion

DeltafusS (J/mol*K) Temperature (K) Reference Comment
49.59168.01McEachern and Kilpatrick, 1964, 3DH

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.

Timmermans, 1935
Timmermans, J., Researches in Stoichiometry. I. The Heat of Fusion of Organic Compounds., Bull. Soc. Chim. Belg., 1935, 44, 17-40. [all data]

Timmermans, 1934
Timmermans, J., Theory of Concentrated Solutions XII., Bull. Soc. Chim. Belg., 1934, 43, 626. [all data]

Timmermans and Martin, 1928
Timmermans, J.; Martin, F., Study of the Physical Constants of Twenty Organic Compounds of the Physical Constants of Twenty Organic Compounds, J. Chim. Phys. Phys.-Chim. Biol., 1928, 25, 411. [all data]

Timmermans, 1911
Timmermans, J., Researches on the freezing point of organic liquid compounds, Bull. Soc. Chim. Belg., 1911, 25, 300. [all data]

Wilhoit, Chao, et al., 1985
Wilhoit, R.C.; Chao, J.; Hall, K.R., Thermodynamic Properties of Key Organic Compounds in the Carbon Range C1 to C4. Part 1. Properties of Condensed Phases, J. Phys. Chem. Ref. Data, 1985, 14, 1. [all data]

McEachern and Kilpatrick, 1964
McEachern, D.M.; Kilpatrick, J.E., Entropy and related thermodynamic properties of dimethoxymethane., J. Chem. Phys., 1964, 41, 3127-31. [all data]

Kobe and Mathews, 1970
Kobe, K.A.; Mathews, J.F., Critical Properties and Vapor Pressures of Some Organic Nitrogen and Oxygen Compounds, J. Chem. Eng. Data, 1970, 15, 182. [all data]

Bourgou, 1924
Bourgou, A., Contribution a l'Etude du Methylal comme Solvant, Bull. Soc. Chim. Belg., 1924, 33, 101-115. [all data]

Pawlewski, 1883
Pawlewski, B., Critical temperatures of some liquids, Ber. Dtsch. Chem. Ges., 1883, 16, 2633-36. [all data]

Albert, Hahnenstein, et al., 2001
Albert, Michael; Hahnenstein, Immanuel; Hasse, Hans; Maurer, Gerd, Vapor-Liquid and Liquid-Liquid Equilibria in Binary and Ternary Mixtures of Water, Methanol, and Methylal, J. Chem. Eng. Data, 2001, 46, 4, 897-903, https://doi.org/10.1021/je000352l . [all data]

McEachern and Kilpatrick, 1964, 2
McEachern, D.M., Jr.; Kilpatrick, J.E., Entropy and related thermodynamic properties of dimethoxymethane, Ber. Bunsenges. Phys. Chem., 1964, 41, 3127. [all data]

McEachern and Kilpatrick, 1964, 3
McEachern, D.M., Jr.; Kilpatrick, J.E., Entropy and related thermodynamic properties of dimethoxymethane, J. Chem. Phys., 1964, 41, 3127-3131. [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]

Brazhnikov, Peshchenko, et al., 1976
Brazhnikov, M.M.; Peshchenko, A.D.; Ral'ko, O.V., Zh. Prikl. Khim. (Leningrad), 1976, 49, 1041. [all data]

Nicolini and Laffitte, 1949
Nicolini, E.; Laffitte, P., Compt. Rend., 1949, 229, 757. [all data]

Nicolini and Laffitte, 1949, 2
Nicolini, E.; Laffitte, P., Tensions de Vapeur de Quelques Liquides Organiques Purs, Compt. Rend., 1949, 229, 757-759. [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]


Notes

Go To: Top, Phase change data, References