- Formula: C3H10N2
- Molecular weight: 74.1249
- IUPAC Standard InChI:
- Download the identifier in a file.
- IUPAC Standard InChIKey: NIIPNAJXERMYOG-UHFFFAOYSA-N
- CAS Registry Number: 1741-01-1
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
- Other names: N,N,N'-Trimethylhydrazine; Trimethylhydrazine; 1,1,2-Trimethylhydrazine; (CH3)2NNH(CH3)
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- Other data available:
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Condensed phase thermochemistry data
Go To: Top, Phase change 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 by: Eugene S. Domalski and Elizabeth D. Hearing
|S°liquid||55.440||cal/mol*K||N/A||Aston, Zolki, et al., 1955|
Constant pressure heat capacity of liquid
|Cp,liquid (cal/mol*K)||Temperature (K)||Reference||Comment|
|44.441||292.15||Aston, Zolki, et al., 1955||T = 12 to 294 K.|
Phase change data
Go To: Top, Condensed phase thermochemistry data, Mass spectrum (electron ionization), References, Notes
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
|Ttriple||201.24||K||N/A||Aston, Zolki, et al., 1955, 2||Uncertainty assigned by TRC = 0.02 K; TRC|
Enthalpy of vaporization
|vapH (kcal/mol)||Temperature (K)||Method||Reference||Comment|
|7.9491||292.15||N/A||Aston, Zolki, et al., 1955||P = 19.83 kPa; DH|
|8.27||272.||N/A||Aston, Zolki, et al., 1955||Based on data from 257. - 287. K.; AC|
|7.98 ± 0.02||292.||C||Aston, Zolki, et al., 1955||AC|
Entropy of vaporization
|vapS (cal/mol*K)||Temperature (K)||Reference||Comment|
|27.208||292.15||Aston, Zolki, et al., 1955||P; DH|
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
|256.93 - 286.98||4.25841||1204.436||-49.732||Aston, Zolki, et al., 1955||Coefficents calculated by NIST from author's data.|
Enthalpy of fusion
|fusH (kcal/mol)||Temperature (K)||Reference||Comment|
|2.267||201.24||Aston, Zolki, et al., 1955||DH|
|2.27||201.2||Domalski and Hearing, 1996||AC|
Entropy of fusion
|fusS (cal/mol*K)||Temperature (K)||Reference||Comment|
|11.26||201.24||Aston, Zolki, et al., 1955||DH|
Mass spectrum (electron ionization)
Go To: Top, Condensed phase thermochemistry data, Phase change data, References, Notes
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
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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|
Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), Notes
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]
Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions Ttriple Triple point temperature fusH Enthalpy of fusion fusS Entropy of fusion vapH Enthalpy of vaporization vapS Entropy of vaporization
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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