Hydroxylamine

• Formula: H₃NO
• Molecular weight: 33.0299
• IUPAC Standard InChI: InChI=1S/H3NO/c1-2/h2H,1H2 Copy

  
• IUPAC Standard InChIKey: AVXURJPOCDRRFD-UHFFFAOYSA-N Copy
• CAS Registry Number: 7803-49-8
• 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.
• Species with the same structure:
  • Hyponitrous acid
• Other names: NH2OH; Oxammonium; Oxyammonia
• Information on this page:
  • Phase change data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Mass spectrum (electron ionization)
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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• NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

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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 by: William E. Acree, Jr., James S. Chickos

Enthalpy of sublimation

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 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

Ionization energy determinations

Appearance energy determinations

References

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

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Back and Betts, 1965
Back, R.A.; Betts, J., THE DETERMINATION OF THE SATURATION VAPOR PRESSURE OF SOLID HYDROXYLAMINE USING A PISTON PRESSURE GAUGE, Can. J. Chem., 1965, 43, 8, 2157-2161, https://doi.org/10.1139/v65-291 . [all data]

Koppel, Molder, et al., 1983
Koppel, I.A.; Molder, U.H.; Pikver, R.J., Photoelectron spectra of molecules. I. Alcohols, Org. React. Tartu, 1983, 20, 45. [all data]

Kutina, Goodman, et al., 1982
Kutina, R.E.; Goodman, G.L.; Berkowitz, J., Photoionization mass spectrometry of NH₂OH: Heats of formation of HNO⁺ and NOH⁺, J. Chem. Phys., 1982, 77, 1664. [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]

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]

Notes

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

• Symbols used in this document:
  

  AE	Appearance energy
  ΔsubH	Enthalpy of sublimation

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