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Dimethylamine

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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, Kenneth Kroenlein director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil281. ± 1.KAVGN/AAverage of 7 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus180.15KN/ARoberts, Emeleus, et al., 1939Uncertainty assigned by TRC = 0.4 K; not clear whether this was measured or not; TRC
Tfus178.9KN/ASimon and Huter, 1935Uncertainty assigned by TRC = 0.5 K; TRC
Tfus180.15KN/ASimon and Huter, 1935, 2Uncertainty assigned by TRC = 1.5 K; TRC
Tfus180.25KN/AWiberg and Sutterlin, 1935Uncertainty assigned by TRC = 1. K; TRC
Tfus177.15KN/ATimmermans and Mattaar, 1921Uncertainty assigned by TRC = 0.5 K; TRC
Quantity Value Units Method Reference Comment
Ttriple180.97KN/AAston, Eidinoff, et al., 1939Uncertainty assigned by TRC = 0.02 K; TRC
Quantity Value Units Method Reference Comment
Tc437.22KN/AKay and Young, 1974Uncertainty assigned by TRC = 0.15 K; TRC
Tc437.7KN/ABerthoud, 1917Uncertainty assigned by TRC = 0.3 K; TRC
Tc437.75KN/ABerthoud, 1917Uncertainty assigned by TRC = 0.3 K; TRC
Quantity Value Units Method Reference Comment
Pc52.70atmN/AKay and Young, 1974Uncertainty assigned by TRC = 0.03 atm; TRC
Pc52.3500atmN/ABerthoud, 1917Uncertainty assigned by TRC = 0.2999 atm; TRC
Pc52.4300atmN/ABerthoud, 1917Uncertainty assigned by TRC = 0.4000 atm; TRC
Quantity Value Units Method Reference Comment
Deltavap6.080kcal/molN/AMajer and Svoboda, 1985 
Deltavap6.07 ± 0.01kcal/molVIssoire and Long, 1960Heat of formation derived by Cox and Pilcher, 1970; ALS
Deltavap6.21kcal/molN/AIssoire and Long, 1960DRB
Deltavap6.33 ± 0.03kcal/molVAston, Eidinoff, et al., 1939, 2ALS

Enthalpy of vaporization

DeltavapH (kcal/mol) Temperature (K) Method Reference Comment
6.3301280.03N/AAston, Eidinoff, et al., 1939, 3P = 101.325 kPa; DH
6.31280.N/AMajer and Svoboda, 1985 
6.45292.AStephenson and Malanowski, 1987Based on data from 277. - 360. K.; AC
5.69373.AStephenson and Malanowski, 1987Based on data from 358. - 438. K.; AC
6.79264.AStephenson and Malanowski, 1987Based on data from 202. - 279. K. See also Aston, Eidinoff, et al., 1939, 3 and Boublik, Fried, et al., 1984.; AC

Entropy of vaporization

DeltavapS (cal/mol*K) Temperature (K) Reference Comment
22.61280.03Aston, Eidinoff, et al., 1939, 3P; DH

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 Comment
201.38 - 280.014.28800995.445-47.869Aston, Eidinoff, et al., 1939, 3Coefficents calculated by NIST from author's data.

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Reference Comment
1.420180.97Aston, Eidinoff, et al., 1939, 3DH
1.42181.Domalski and Hearing, 1996AC

Entropy of fusion

DeltafusS (cal/mol*K) Temperature (K) Reference Comment
7.847180.97Aston, Eidinoff, et al., 1939, 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.

Roberts, Emeleus, et al., 1939
Roberts, E.R.; Emeleus, H.J.; Briscoe, H.V.A., Preparation and Prop. of Ethyldideuteramine and Dimethyldeuteramine, J. Chem. Soc., 1939, 1939, 41. [all data]

Simon and Huter, 1935
Simon, A.; Huter, J., Vapor Pressure Curves, Melting Point and Chemical Constants of Dimethyl, Trimethyl- and Isobutylamines, Z. Elektrochem., 1935, 41, 28. [all data]

Simon and Huter, 1935, 2
Simon, A.; Huter, J., Z. Elektrochem., 1935, 41, 294. [all data]

Wiberg and Sutterlin, 1935
Wiberg, E.; Sutterlin, W., The Vapor Pressures and Melting Points of Dimethyl- and Trimethylamine Trimethylamines, Z. Elektrochem., 1935, 41, 151. [all data]

Timmermans and Mattaar, 1921
Timmermans, J.; Mattaar, J.F., Freezing points of orgainic substances VI. New experimental determinations., Bull. Soc. Chim. Belg., 1921, 30, 213. [all data]

Aston, Eidinoff, et al., 1939
Aston, J.G.; Eidinoff, M.L.; Forster, W.S., The Heat Capacity and Entropy, Heats of Fusion and Vaporization and the Vapor Pressure of Dimethylamine., J. Am. Chem. Soc., 1939, 61, 1539. [all data]

Kay and Young, 1974
Kay, W.B.; Young, C.L., Int. DATA Ser., Sel. Data Mixtures, Ser. A, 1974, No. 2, 156. [all data]

Berthoud, 1917
Berthoud, A., Determination of Critical Temperatures and Pressures of Amines and Alkyl Chlorides, J. Chim. Phys. Phys.-Chim. Biol., 1917, 15, 3. [all data]

Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]

Issoire and Long, 1960
Issoire, J.; Long, C., Etude de la thermodynamique chimique de la reaction de formation des methylamines, Bull. Soc. Chim. France, 1960, 2004-2012. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Aston, Eidinoff, et al., 1939, 2
Aston, J.G.; Eidinoff, M.L.; Forster, W.S., The heat capacity and entropy, heats of fusion and vaporization and the vapor pressure of dimethylamine, J. Am. Chem. Soc., 1939, 61, 1539-15. [all data]

Aston, Eidinoff, et al., 1939, 3
Aston, J.G.; Eidinoff, M.L.; Forster, W.S., The heat capacity and entropy, heats of fusion and vaporization and the vapor pressure of dimethylamine, J. Am. Chem. Soc., 1939, 61, 1539-1543. [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]

Boublik, Fried, et al., 1984
Boublik, T.; Fried, V.; Hala, E., The Vapour Pressures of Pure Substances: Selected Values of the Temperature Dependence of the Vapour Pressures of Some Pure Substances in the Normal and Low Pressure Region, 2nd ed., Elsevier, New York, 1984, 972. [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