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Hydrazine, 1,1-dimethyl-

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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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil337.1KN/AWeast and Grasselli, 1989BS
Tboil336.2KN/AMajer and Svoboda, 1985 
Quantity Value Units Method Reference Comment
Tfus216.KN/AMcMillan, 1967Uncertainty assigned by TRC = 1.5 K; TRC
Quantity Value Units Method Reference Comment
Ttriple215.95KN/AAston, Wood, et al., 1953Uncertainty assigned by TRC = 0.02 K; TRC
Quantity Value Units Method Reference Comment
Deltavap8.418kcal/molN/AMajer and Svoboda, 1985 
Deltavap8.37 ± 0.04kcal/molVAston, Wood, et al., 1953, 2ALS

Reduced pressure boiling point

Tboil (K) Pressure (atm) Reference Comment
336.20.991Aldrich Chemical Company Inc., 1990BS

Enthalpy of vaporization

DeltavapH (kcal/mol) Temperature (K) Method Reference Comment
8.3659298.15N/AAston, Wood, et al., 1953, 3P = 20.90 kPa; DH
7.780336.2N/AMajer and Svoboda, 1985 
8.15284.N/ABourret-Courchesne, Ye, et al., 2000Based on data from 267. - 303. K.; AC
8.72277.AStephenson and Malanowski, 1987Based on data from 238. - 292. K. See also Aston, Wood, et al., 1953, 3 and Boublik, Fried, et al., 1984.; AC

Entropy of vaporization

DeltavapS (cal/mol*K) Temperature (K) Reference Comment
28.06298.15Aston, Wood, et al., 1953, 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
237.74 - 293.084.707451388.51-40.613Aston, Wood, et al., 1953, 3Coefficents calculated by NIST from author's data.

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Reference Comment
2.40741215.95Aston, Wood, et al., 1953, 3DH
2.407216.Domalski and Hearing, 1996AC

Entropy of fusion

DeltafusS (cal/mol*K) Temperature (K) Reference Comment
11.15215.95Aston, Wood, et al., 1953, 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.

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]

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]

McMillan, 1967
McMillan, J.A., Hydrazine-1,1-Dimethylhydrazine Solid-Liquid Phase Diagram, J. Chem. Eng. Data, 1967, 12, 39. [all data]

Aston, Wood, et al., 1953
Aston, J.G.; Wood, J.L.; Zolki, T.P., The Thermodynamic Properties and Configuration of Unsymmetrical Dimethylhydrazine, J. Am. Chem. Soc., 1953, 75, 6202. [all data]

Aston, Wood, et al., 1953, 2
Aston, J.G.; Wood, J.L.; Zolki, T.P., The thermodynamic properties and configuration of unsymmetrical dimethylhydrazine, J. Am. Chem. Soc., 1953, 75, 6202-62. [all data]

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

Aston, Wood, et al., 1953, 3
Aston, J.G.; Wood, J.L.; Zolki, T.P., The thermodynamic properties and configuration of unsymmetrical dimethylhydrazine, J. Am. Chem. Soc., 1953, 75, 6202-6204. [all data]

Bourret-Courchesne, Ye, et al., 2000
Bourret-Courchesne, E.; Ye, Q.; Peters, D.W.; Arnold, J.; Ahmed, M.; Irvine, S.J.C.; Kanjolia, R.; Smith, L.M.; Rushworth, S.A., Pyrolysis of dimethylhydrazine and its co-pyrolysis with triethylgallium, Journal of Crystal Growth, 2000, 217, 1-2, 47-54, https://doi.org/10.1016/S0022-0248(00)00398-5 . [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

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