Hydroxylamine, O-methyl-

• Formula: CH₅NO
• Molecular weight: 47.0565
• IUPAC Standard InChI: InChI=1S/CH5NO/c1-3-2/h2H2,1H3 Copy

  
• IUPAC Standard InChIKey: GMPKIPWJBDOURN-UHFFFAOYSA-N Copy
• CAS Registry Number: 67-62-9
• Chemical structure:
  This structure is also available as a 2d Mol file
• Other names: CH3ONH2; Methoxyamine; O-Methylhydroxylamine; NCI-C60060; Hydroxylamine methyl ether; Methoxylamine
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• Information on this page:
  • Phase change data
  • Gas phase ion energetics data
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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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:
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

Antoine Equation Parameters

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

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Gas phase ion energetics 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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

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

View reactions leading to CH₅NO⁺ (ion structure unspecified)

Ionization energy determinations

Appearance energy determinations

Mass spectrum (electron ionization)

Go To: Top, Phase change data, Gas phase ion energetics 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, Phase change data, Gas phase ion energetics 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.

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]

Bissot, Parry, et al., 1957
Bissot, T.C.; Parry, R.W.; Campbell, D.H., The Physical and Chemical Properties of the Methylhydroxylamines ¹, J. Am. Chem. Soc., 1957, 79, 4, 796-800, https://doi.org/10.1021/ja01561a005 . [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]

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]

Molder, Pikver, et al., 1983
Molder, U.H.; Pikver, R.J.; Koppel, I.A., Photoelectron spectra of molecules. 2. Ethers, Org. React. (N.Y. Engl. Transl.), 1983, 20, 208. [all data]

Kimura and Katsumata, 1977
Kimura, K.; Katsumata, S., Photoelectron spectroscopic study of hydroxylamine (NH₂OH) o-methylhydroxylamine (NH₂OCH₃), J. Chem. Phys., 1977, 67, 1225. [all data]

Rademacher and Freckmann, 1980
Rademacher, P.; Freckmann, B., Photoelektronen spektren und Konformations-verhalten von Hydroxylamin und Methylhydroxylaminen, J. Electron Spectrosc. Relat. Phenom., 1980, 19, 251. [all data]

Notes

Go To: Top, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), References

• Symbols used in this document:
  

  AE	Appearance energy
  ΔvapH	Enthalpy of vaporization

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