Piperazine, 1,4-dimethyl-
- Formula: C6H14N2
- Molecular weight: 114.1888
- IUPAC Standard InChIKey: RXYPXQSKLGGKOL-UHFFFAOYSA-N
- CAS Registry Number: 106-58-1
- 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: Lupetazine; N,N'-Dimethylpiperazine; 1,4-Dimethylpiperazine; N,N'-Dimethyipiperazine; Texacat DMP
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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
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 404.15 | K | N/A | Lanum and Morris, 1969 | Uncertainty assigned by TRC = 0.3 K; TRC |
Tboil | 403.65 | K | N/A | Aroney and Le Fevre, 1960 | Uncertainty assigned by TRC = 1.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 272.15 | K | N/A | Lanum and Morris, 1969 | Uncertainty assigned by TRC = 0.2 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 41.2 ± 0.4 | kJ/mol | GS | Efimova, Emel'yanenko, et al., 2010 | Based on data from 268. to 311. K.; AC |
ΔvapH° | 43.8 ± 0.3 | kJ/mol | GS | Verevkin, 1998 | Based on data from 270. to 309. K.; AC |
Reduced pressure boiling point
Tboil (K) | Pressure (bar) | Reference | Comment |
---|---|---|---|
404.7 | 1.00 | Aldrich Chemical Company Inc., 1990 | BS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
44.3 ± 0.3 | 289. | GS | Verevkin, 1998 | Based on data from 270. to 309. K.; AC |
41.6 | 291. | A | Stephenson and Malanowski, 1987 | Based on data from 276. to 319. K. See also Cabani, Conti, et al., 1975.; AC |
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.
Lanum and Morris, 1969
Lanum, W.J.; Morris, J.C.,
Physical Properties of Some Sulfur and Nitrogen Compounds,
J. Chem. Eng. Data, 1969, 14, 93-8. [all data]
Aroney and Le Fevre, 1960
Aroney, M.; Le Fevre, R.J.W.,
Molecular polarizability. The conformation of various n-substituted anilines, piperidines, and piperazines,
J. Chem. Soc., 1960, 1960, 2161. [all data]
Efimova, Emel'yanenko, et al., 2010
Efimova, Anastasia A.; Emel'yanenko, Vladimir N.; Verevkin, Sergey P.; Chernyak, Yury,
Vapour pressure and enthalpy of vaporization of aliphatic poly-amines,
The Journal of Chemical Thermodynamics, 2010, 42, 3, 330-336, https://doi.org/10.1016/j.jct.2009.09.003
. [all data]
Verevkin, 1998
Verevkin, Sergey P.,
Thermochemistry of amines: strain in six-membered rings from experimental standard molar enthalpies of formation of morpholines and piperazines,
The Journal of Chemical Thermodynamics, 1998, 30, 9, 1069-1079, https://doi.org/10.1006/jcht.1998.0371
. [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]
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]
Cabani, Conti, et al., 1975
Cabani, Sergio; Conti, G.; Giannessi, D.; Lepori, L.,
Thermodynamic study of aqueous dilute solutions of organic compounds. Part 3.---Morpholines and piperazines,
J. Chem. Soc., Faraday Trans. 1, 1975, 71, 0, 1154, https://doi.org/10.1039/f19757101154
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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