1,4-Bis(2-hydroxyethyl)piperazine

• Formula: C₈H₁₈N₂O₂
• Molecular weight: 174.2407
• IUPAC Standard InChI: InChI=1S/C8H18N2O2/c11-7-5-9-1-2-10(4-3-9)6-8-12/h11-12H,1-8H2 Copy

  
• IUPAC Standard InChIKey: VARKIGWTYBUWNT-UHFFFAOYSA-N Copy
• CAS Registry Number: 122-96-3
• 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'-Bis(2-hydroxyethyl)piperazine; di(N-Hydroxyethyl)piperazine; 1,4-Piperazinediethanol; N,N'-Bis(β-hydroxyethyl)piperazine; N,N'-Di(2-hydroxyethyl)piperazine; N,N'-Dihydroxyethylpiperazine; Piperazine, N,N'-bis(2-hydroxyethyl)-; 1,4-Bis(β-hydroxyethyl)piperazine; 1,4-Di(2-hydroxyethyl)piperazine; NSC 26892; NSC 36645; piperazine-1,4-diethanol
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• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • IR Spectrum
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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of solid

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:
DH - Eugene S. Domalski and Elizabeth D. Hearing
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

Enthalpy of vaporization

Enthalpy of sublimation

Enthalpy of fusion

Entropy of fusion

Mass spectrum (electron ionization)

Go To: Top, Condensed phase thermochemistry data, Phase change data, 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

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.

Lebedeva, Gutner, et al., 1984
Lebedeva, N.D.; Gutner, N.M.; Katin, Yu.A.; Kozlova, N.M.; Kiseleva, N.N.; Makhina, E.F.; Dobychin, S.L., Thermochemical study of bis-hydroxyethylpiperazine, N,N-dimethylpropylenediamine, and 2,2-azodiisobutyrodinitrile, J. Appl. Chem. USSR, 1984, 57, 2118-2122. [all data]

Lebedeva, Gutner, et al., 1984, 2
Lebedeva, N.D.; Gutner, N.M.; Katin, Yu.A.; Kozlova, N.M.; Kiseleva, N.N.; Machinya, E.F.; Dobychin, S.L.; Thermochemical study of bis(hydroxyethyl)piperazine, N., N-dimethylpropylenediamine and 2,2-azodiisobutyric acid dinitrile, Zhur. Prikl. Khim. (Leningrad), 1984, 57(10), 2297-2301. [all data]

Lebedeva, Gutner, et al., 1984, 3
Lebedeva, N.D.; Gutner, N.M.; Katin, Y.A.; Kozlova, N.M.; Kiseleva, N.N.; Makhina, E.F.; Dobychin, S.K., Zh. Prikl. Khim., 1984, 57, 2297. [all data]

Verevkin, 2002
Verevkin, Sergey P., Relationships among strain energies of mono- and poly-cyclic cyclohexanoid molecules and strain of their component rings, The Journal of Chemical Thermodynamics, 2002, 34, 2, 263-275, https://doi.org/10.1006/jcht.2001.0896 . [all data]

Abdi and Meisen, 1998
Abdi, Majid Abedinzadegan; Meisen, Axel, Vapor Pressure Measurements of Bis(hydroxyethyl)piperazine and Tris(hydroxyethyl)ethylenediamine, J. Chem. Eng. Data, 1998, 43, 2, 133-137, https://doi.org/10.1021/je970146m . [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

• Symbols used in this document:
  

  Cp,solid	Constant pressure heat capacity of solid
  Tboil	Boiling point
  Tfus	Fusion (melting) point
  ΔcH°solid	Enthalpy of combustion of solid at standard conditions
  ΔfH°solid	Enthalpy of formation of solid at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔsubH	Enthalpy of sublimation
  ΔsubH°	Enthalpy of sublimation at standard conditions
  ΔvapH	Enthalpy of vaporization

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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