Hydrazine, trimethyl-
- Formula: C3H10N2
- Molecular weight: 74.1249
- 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
The 3d structure may be viewed using Java or Javascript. - Other names: N,N,N'-Trimethylhydrazine; Trimethylhydrazine; 1,1,2-Trimethylhydrazine; (CH3)2NNH(CH3)
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Condensed phase thermochemistry data
Go To: Top, Phase change data, Mass spectrum (electron ionization), UV/Visible spectrum, 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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
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), UV/Visible spectrum, 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, Chris Muzny director
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Ttriple | 201.24 | K | N/A | Aston, Zolki, et al., 1955, 2 | Uncertainty assigned by TRC = 0.02 K; TRC |
Enthalpy of vaporization
ΔvapH (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. to 287. K.; AC |
7.98 ± 0.02 | 292. | C | Aston, Zolki, et al., 1955 | AC |
Entropy of vaporization
ΔvapS (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)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
256.93 to 286.98 | 4.25841 | 1204.436 | -49.732 | Aston, Zolki, et al., 1955 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (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
ΔfusS (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, UV/Visible spectrum, 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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Due to licensing restrictions, this spectrum cannot be downloaded.
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 |
UV/Visible spectrum
Go To: Top, Condensed phase thermochemistry data, 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.
Spectrum
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Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
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Source | Bol'shakov, et al., 1969 |
---|---|
Owner | INEP CP RAS, NIST OSRD Collection (C) 2007 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
Origin | INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS |
Source reference | RAS UV No. 20197 |
Instrument | SF-4 |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), UV/Visible spectrum, 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]
Bol'shakov, et al., 1969
Bol'shakov, G.F., et al.,
Ultraviolet spectra of heteroorganic compounds, 1969, 222. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), UV/Visible spectrum, 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 ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion ΔvapH Enthalpy of vaporization ΔvapS Entropy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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