2-Methyl-1,2-propanediamine

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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:
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
DRB - Donald R. Burgess, Jr.
CAL - James S. Chickos, William E. Acree, Jr., Joel F. Liebman, Students of Chem 202 (Introduction to the Literature of Chemistry), University of Missouri -- St. Louis
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Ttriple256.1KN/AMesserly, Finke, et al., 1975Crystal phase 1 phase; Uncertainty assigned by TRC = 0.2 K; TRC
Quantity Value Units Method Reference Comment
Δvap43.6 ± 0.2kJ/molIPDouslin and Osborn, 2002See also Good and Moore, 1970.; AC
Δvap43.5 ± 0.2kJ/molIPMesserly, Finke, et al., 1975, 2Based on data from 256. - 293. K.; AC
Δvap43.6 ± 0.2kJ/molVGood and Moore, 1970ALS
Δvap43.8kJ/molN/AGood and Moore, 1970DRB

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Method Reference Comment
47.2278.IPStephenson and Malanowski, 1987Based on data from 256. - 293. K. See also Messerly, Finke, et al., 1975, 2.; AC

Enthalpy of fusion

ΔfusH (kJ/mol) Temperature (K) Reference Comment
2.23256.1Domalski and Hearing, 1996See also Messerly, Finke, et al., 1975, 2.; AC

Entropy of fusion

ΔfusS (J/mol*K) Temperature (K) Reference Comment
65.11237.5Domalski and Hearing, 1996CAL
8.71256.1

Enthalpy of phase transition

ΔHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
15.464237.5crystaline, IIcrystaline, IMesserly, Finke, et al., 1975, 2DH
2.230256.1crystaline, IliquidMesserly, Finke, et al., 1975, 2DH

Entropy of phase transition

ΔStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
65.11237.5crystaline, IIcrystaline, IMesserly, Finke, et al., 1975, 2DH
8.71256.1crystaline, IliquidMesserly, Finke, et al., 1975, 2DH

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

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Messerly, Finke, et al., 1975
Messerly, J.F.; Finke, H.L.; Osborn, A.G.; Douslin, D.R., Low-temperature calorimetric and vapor-pressure studies on alkanediamines, J. Chem. Thermodyn., 1975, 7, 1029-46. [all data]

Douslin and Osborn, 2002
Douslin, D.R.; Osborn, A., Pressure measurements in the 0.01-30 torr range with an inclined-piston gauge, J. Sci. Instrum., 2002, 42, 6, 369-373, https://doi.org/10.1088/0950-7671/42/6/301 . [all data]

Good and Moore, 1970
Good, W.D.; Moore, R.T., Enthalpies of formation of ethylenediamine, 1,2,-propanediamine, 1,2,-butanediamine, 2-methyl-1,2-propanediamine, and isobutylamine C-N and N-F Thermochemical bond energies, J. Chem. Eng. Data, 1970, 15, 150-154. [all data]

Messerly, Finke, et al., 1975, 2
Messerly, J.F.; Finke, H.L.; Osborn, A.G.; Douslin, D.R., Low-temperature calorimetric and vapor-pressure studies on alkanediamines, J. Chem. Thermodynam., 1975, 7, 1029-1046. [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]

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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