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Hydrazine, trimethyl-

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Condensed phase thermochemistry 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 by: Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
liquid55.440cal/mol*KN/AAston, Zolki, et al., 1955 

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
44.441292.15Aston, Zolki, et al., 1955T = 12 to 294 K.

Phase change data

Go To: Top, Condensed phase thermochemistry data, Mass spectrum (electron ionization), 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Kenneth Kroenlein director
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Ttriple201.24KN/AAston, Zolki, et al., 1955, 2Uncertainty assigned by TRC = 0.02 K; TRC

Enthalpy of vaporization

DeltavapH (kcal/mol) Temperature (K) Method Reference Comment
7.9491292.15N/AAston, Zolki, et al., 1955P = 19.83 kPa; DH
8.27272.N/AAston, Zolki, et al., 1955Based on data from 257. - 287. K.; AC
7.98 ± 0.02292.CAston, Zolki, et al., 1955AC

Entropy of vaporization

DeltavapS (cal/mol*K) Temperature (K) Reference Comment
27.208292.15Aston, Zolki, et al., 1955P; 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
256.93 - 286.984.258411204.436-49.732Aston, Zolki, et al., 1955Coefficents calculated by NIST from author's data.

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Reference Comment
2.267201.24Aston, Zolki, et al., 1955DH
2.27201.2Domalski and Hearing, 1996AC

Entropy of fusion

DeltafusS (cal/mol*K) Temperature (K) Reference Comment
11.26201.24Aston, Zolki, et al., 1955DH

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Mass spectrum (electron ionization)

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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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Mass spectrum
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Additional Data

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Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin ATLAS OF MASS SPECTRA OF ORGANIC COMPOUNDS, V. A. KOPTYUG, ED.
NIST MS number 64451

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References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), Notes

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

Aston, Zolki, et al., 1955
Aston, J.G.; Zolki, T.P.; Wood, J.L., The thermodynamic properties and configuration of trimethylhydrazine identification and correction for a major impurity, J. Am. Chem. Soc., 1955, 77, 281-284. [all data]

Aston, Zolki, et al., 1955, 2
Aston, J.G.; Zolki, T.P.; Wood, J.L., The thermodynamic properties and configuration of trimethylhydrazine identification and correction for a major impurity, J. Am. Chem. Soc., 1955, 77, 281. [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, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References