Ethylenediamine

• Formula: C₂H₈N₂
• Molecular weight: 60.0983
• IUPAC Standard InChI: InChI=1S/C2H8N2/c3-1-2-4/h1-4H2 Copy

  
• IUPAC Standard InChIKey: PIICEJLVQHRZGT-UHFFFAOYSA-N Copy
• CAS Registry Number: 107-15-3
• 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: 1,2-Ethanediamine; β-Aminoethylamine; Dimethylenediamine; Ethane-1,2-diamine; 1,2-Diaminoethane; 1,2-Ethylenediamine; H2NCH2CH2NH2; Aethaldiamin; Aethylenediamin; 1,2-Diaminoaethan; 1,2-Diamino-ethaan; 1,2-Diamino-ethano; Ethyleendiamine; Ethylendiamine; NCI-C60402; UN 1604
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Henry's Law data
  • Gas phase ion energetics data
  • Ion clustering data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • Gas Chromatography
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
• Options:
  • Switch to calorie-based units

Data at NIST subscription sites:

• NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.

Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of liquid

Phase change data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, 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:
BS - Robert L. Brown and Stephen E. Stein
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
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing

Enthalpy of vaporization

Antoine Equation Parameters

log₁₀(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

View plot Requires a JavaScript / HTML 5 canvas capable browser.

Enthalpy of sublimation

Enthalpy of fusion

Enthalpy of phase transition

Entropy of phase transition

Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, 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:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

( • 2) +  = ( • 3)

By formula: (K⁺ • 2C₂H₈N₂) + C₂H₈N₂ = (K⁺ • 3C₂H₈N₂)

Bond type: Polydentate bonding in non-hydrogen-bonded positive ions

( • ) +  = ( • 2)

By formula: (K⁺ • C₂H₈N₂) + C₂H₈N₂ = (K⁺ • 2C₂H₈N₂)

Bond type: Polydentate bonding in non-hydrogen-bonded positive ions

(C₂H₉N⁺ • 2) +  = (C₂H₉N⁺ • 3)

By formula: (C₂H₉N⁺ • 2C₂H₈N₂) + C₂H₈N₂ = (C₂H₉N⁺ • 3C₂H₈N₂)

 +  = ( • )

By formula: K⁺ + C₂H₈N₂ = (K⁺ • C₂H₈N₂)

Bond type: Polydentate bonding in non-hydrogen-bonded positive ions

 +  =

By formula: C₂H₈N₂ + C₂H₅N = C₄H₁₃N₃

Henry's Law data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, 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: Rolf Sander

Henry's Law constant (water solution)

k_H(T) = k°_H exp(d(ln(k_H))/d(1/T) ((1/T) - 1/(298.15 K)))
k°_H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(k_H))/d(1/T) = Temperature dependence constant (K)

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Ion clustering data, IR Spectrum, 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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

Data compiled as indicated in comments:
MM - Michael M. Meot-Ner (Mautner)
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard

Proton affinity at 298K

Ionization energy determinations

Appearance energy determinations

Ion clustering data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, IR Spectrum, 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: Michael M. Meot-Ner (Mautner) and Sharon G. Lias

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

(C₂H₉N⁺ • 2) +  = (C₂H₉N⁺ • 3)

By formula: (C₂H₉N⁺ • 2C₂H₈N₂) + C₂H₈N₂ = (C₂H₉N⁺ • 3C₂H₈N₂)

 +  = ( • )

By formula: K⁺ + C₂H₈N₂ = (K⁺ • C₂H₈N₂)

Bond type: Polydentate bonding in non-hydrogen-bonded positive ions

( • ) +  = ( • 2)

By formula: (K⁺ • C₂H₈N₂) + C₂H₈N₂ = (K⁺ • 2C₂H₈N₂)

Bond type: Polydentate bonding in non-hydrogen-bonded positive ions

( • 2) +  = ( • 3)

By formula: (K⁺ • 2C₂H₈N₂) + C₂H₈N₂ = (K⁺ • 3C₂H₈N₂)

Bond type: Polydentate bonding in non-hydrogen-bonded positive ions

IR Spectrum

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, Mass spectrum (electron ionization), References, Notes

Data compiled by: Coblentz Society, Inc.

• SOLUTION (11% CCl4 FOR 3800-1000, 6% CS2 FOR 1000-650, AND 11% CCl4 FOR 650-250); PERKIN-ELMER 521 (GRATING); 2 cm^-1 resolution

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

• gas

Mass spectrum (electron ionization)

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR 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

Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.

For Zoom

1.) Enter the desired X axis range (e.g., 100, 200)

2.) Check here for automatic Y scaling

3.) Press here to zoom

Additional Data

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, 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.

Good and Moore, 1970
Good, W.D.; Moore, R.T., Enthalpies of formation of ethylenediamine, 1,2,-propanediamine, 1,2,-butanediamine, 2-methyl-1,2-propanediamine, and isobutylamine C-N and N-F Thermochemical bond energies, J. Chem. Eng. Data, 1970, 15, 150-154. [all data]

Messerly, Finke, et al., 1975
Messerly, J.F.; Finke, H.L.; Osborn, A.G.; Douslin, D.R., Low-temperature calorimetric and vapor-pressure studies on alkanediamines, J. Chem. Thermodynam., 1975, 7, 1029-1046. [all data]

Hough, Mason, et al., 1950
Hough, E.W.; Mason, D.M.; Sage, B.H., Heat capacities of several organic liquids, J. Am. Chem. Soc., 1950, 72, 5775-5777. [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]

Kato and Tanaka, 1989
Kato, M.; Tanaka, H., Vapor-Liquid Equilibrium Determination with a Flow-Type Ebulliometer for Six Binary Systems Made of Alcohol and Amine, J. Chem. Eng. Data, 1989, 34, 203. [all data]

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]

Anderson and Shimanskaya, 1969
Anderson, A.A.; Shimanskaya, M.V., Gas-Liquid Chromatography of some Aliphatic and Heterocyclic Polyfunctional Amines: II. Solution Thermodyn. of Amines in Fix. Phas., Latv. PSR Zinat. Akad. Vestis, Kim. Ser., 1969, No. 5, 527. [all data]

Messerly, Finke, et al., 1975, 2
Messerly, J.F.; Finke, H.L.; Osborn, A.G.; Douslin, D.R., Low-temperature calorimetric and vapor-pressure studies on alkanediamines, J. Chem. Thermodyn., 1975, 7, 1029-46. [all data]

Wilson, Wilson, et al., 1996
Wilson, L.C.; Wilson, H.L.; Wilding, W.V.; Wilson, G.M., Critical Point Measurements for Fourteen Compounds by a Static Method and a Flow Method, J. Chem. Eng. Data, 1996, 41, 1252-4. [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]

Hieber and Woerner, 1934
Hieber, W.; Woerner, A., Thermochemische Messungen an Komplexbildenden Aminen und Alkoholen, Zeitschrift für Elektrochemie und angewandte physikalische Chemie, 1934, 40, 5, 252-256, https://doi.org/10.1002/bbpc.19340400508 . [all data]

Boublik, Fried, et al., 1984
Boublik, T.; Fried, V.; Hala, E., The Vapour Pressures of Pure Substances: Selected Values of the Temperature Dependence of the Vapour Pressures of Some Pure Substances in the Normal and Low Pressure Region, 2nd ed., Elsevier, New York, 1984, 972. [all data]

Lee, Chang, et al., 1997
Lee, Ming-Jer; Chang, Yao-Kun; Lin, Ho-mu; Chen, Chang-Hsin, Solid-Liquid Equilibria for 4-Methoxyphenol with Catechol, Ethylenediamine, or Piperazine, J. Chem. Eng. Data, 1997, 42, 2, 349-352, https://doi.org/10.1021/je960201b . [all data]

Acree, 1991
Acree, William E., Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation, Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H . [all data]

Lee, Lien, et al., 1994
Lee, Ming-Jer; Lien, Pei-Jung; Huang, Wen-Kuo, Solid-Liquid Equilibria for Binary Mixtures Containing Cresols, Ethylenediamine, and Anisole, Ind. Eng. Chem. Res., 1994, 33, 11, 2853-2858, https://doi.org/10.1021/ie00035a040 . [all data]

Davidson and Kebarle, 1976
Davidson, W.R.; Kebarle, P., Binding Energies and Stabilities of Potassium Ion Complexes with Ethylene Diamine and Dimethoxyethane (Glyme) from Measurements of the Complexing Equilibria in the Gas Phase, Can. J. Chem., 1976, 54, 16, 2594, https://doi.org/10.1139/v76-368 . [all data]

Wincel and Herman, 1973
Wincel, H.; Herman, J.A., Photoionization Study of Clustering Reactions in Diamines: Ethane-1,2-diamine, Propane-1,2-diamine and Propane-1,3-diamine, J. Chem. Soc. Faraday Trans., 1973, 69, 1797, https://doi.org/10.1039/f19736901797 . [all data]

Dalin, Bobylev, et al., 1988
Dalin, A.R.; Bobylev, V.A.; Suslikov, V.F.; Kamskaya, O.I.; Tereshchenko, G.F., Nucleophilic cleavage and the formation of saturated heterocycles. VII. Kinetic and thermochemical study of reactions of aziridine with ethylene amines, J. Gen. Chem. USSR, 1988, 58, 1868-1871. [all data]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Hahn and Wesdemiotis, 2003
Hahn, I.S.; Wesdemiotis, C., Protonation Thermochemistry of beta-Alanine. An Evaluation of Proton Affinities and Entropies Determined by the Extended Kinetic Method, Int. J. Mass Spectrometry, 2003, 222, 465. [all data]

Wang, Chu, et al., 1999
Wang, Z.; Chu, I.K.; Rodriquez, C.F.; Hopkinson, A.C.; Siu, K.W.M., α,ω-Diaminoalkanes as models for bases that dicoordinate the proton: An evaluation of the kinetic method for estimating their proton affinities, J. Phys. Chem. A., 1999, 103, 8700. [all data]

Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S., Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]

Burkey, Castelhano, et al., 1983
Burkey, T.J.; Castelhano, A.L.; Griller, D.; Lossing, F.P., Heats of formation and ionization potentials of some α-aminoalkyl radicals, J. Am. Chem. Soc., 1983, 105, 4701. [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), References

• Symbols used in this document:
  

  AE	Appearance energy
  Cp,liquid	Constant pressure heat capacity of liquid
  Pc	Critical pressure
  S°liquid	Entropy of liquid at standard conditions
  Tboil	Boiling point
  Tc	Critical temperature
  Ttriple	Triple point temperature
  d(ln(kH))/d(1/T)	Temperature dependence parameter for Henry's Law constant
  k°H	Henry's Law constant at 298.15K
  ΔHtrs	Enthalpy of phase transition
  ΔStrs	Entropy of phase transition
  ΔcH°liquid	Enthalpy of combustion of liquid at standard conditions
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔfH°liquid	Enthalpy of formation of liquid at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔrS°	Entropy of reaction at standard conditions
  ΔsubH	Enthalpy of sublimation
  ΔvapH	Enthalpy of vaporization
  ΔvapH°	Enthalpy of vaporization at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
• The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
• Customer support for NIST Standard Reference Data products.