Nitrous oxide

• Formula: N₂O
• Molecular weight: 44.0128
• IUPAC Standard InChI: InChI=1S/N2O/c1-2-3 Copy

  
• IUPAC Standard InChIKey: GQPLMRYTRLFLPF-UHFFFAOYSA-N Copy
• CAS Registry Number: 10024-97-2
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: Nitrogen oxide (N2O); Dinitrogen monoxide; Dinitrogen oxide; Laughing gas; N2O; Factitious air; Hyponitrous acid anhydride; Nitrogen oxide; UN 1070; UN 2201; Nitrogen monoxide; Nitral
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• Information on this page:
  • Phase change data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Reaction thermochemistry data: reactions 1 to 50, reactions 51 to 83
  • Henry's Law data
  • Gas phase ion energetics data
  • Ion clustering data
  • Gas Chromatography
  • Fluid Properties
• Data at other public NIST sites:
  • Microwave spectra (on physics lab web site)
  • Electron-Impact Ionization Cross Sections (on physics web site)
  • Gas Phase Kinetics Database
• Options:
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Data at NIST subscription sites:

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

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Phase change data

Go To: Top, 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
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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Enthalpy of sublimation

Enthalpy of fusion

IR Spectrum

Go To: Top, Phase change data, Mass spectrum (electron ionization), References, Notes

Data compiled by: Coblentz Society, Inc.

• GAS (100 mmHg, N2 ADDED, TOTAL PRESSURE 600 mmHg); DOW KBr FOREPRISM-GRATING; DIGITIZED BY COBLENTZ SOCIETY (BATCH I) FROM HARD COPY; 2 cm^-1 resolution

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

• gas

Mass spectrum (electron ionization)

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

Spectrum

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Additional Data

References

Go To: Top, Phase change 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.

Fonseca and Lobo, 1989
Fonseca, I.M.A.; Lobo, L.Q., Thermodynamics of liquid mixtures of xenon and methyl fluoride, Fluid Phase Equilib., 1989, 47, 249. [all data]

Calado, Rebelo, et al., 1986
Calado, J.C.G.; Rebelo, L.P.N.; Streett, W.B.; Zollweg, J.A., Thermodynamics of liquid (dimethylether + xenon), J. Chem. Thermodyn., 1986, 18, 931. [all data]

Ohgaki, Umezono, et al., 1990
Ohgaki, K.; Umezono, S.; Katayama, T., Pressure-density-temperature (p-ρ-T) relations of fluoroform, nitrous oxide, and propene in the critical region, J. Supercrit. Fluids, 1990, 3, 78-84. [all data]

Li and Kiran, 1988
Li, L.; Kiran, E., Gas-Liquid Critical Properties of Methylamine + Nitrous Oxide and Methylamine + Ethylene Binary Mixtures, J. Chem. Eng. Data, 1988, 33, 342. [all data]

Tsiklis and Prokhorov, 1967
Tsiklis, D.S.; Prokhorov, V.M., Phase equilibria in systems containing fluorine compounds, Zh. Fiz. Khim., 1967, 41, 2195-9. [all data]

Cook, 1953
Cook, D., Vapor Pressure and Orthobaric Density of Nitrous Oxide, Trans. Faraday Soc., 1953, 49, 716. [all data]

Atake and Chihara, 1974
Atake, Tooru; Chihara, Hideaki, A New Condensed Gas Calorimeter. Thermodynamic Properties of Solid and Liquid Dinitrogen Oxide, Bull. Chem. Soc. Jpn., 1974, 47, 9, 2126-2136, https://doi.org/10.1246/bcsj.47.2126 . [all data]

Hoge, 1945
Hoge, H.J., Vapor pressure, latent heat of vaporization, and triple-point temperature of N2O, J. RES. NATL. BUR. STAN., 1945, 34, 3, 281-17, https://doi.org/10.6028/jres.034.015 . [all data]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]

Bryson, Cazcarra, et al., 1974
Bryson, Charles E.; Cazcarra, Victor; Levenson, Leonard L., Sublimation rates and vapor pressures of water, carbon dioxide, nitrous oxide, and xenon, J. Chem. Eng. Data, 1974, 19, 2, 107-110, https://doi.org/10.1021/je60061a021 . [all data]

Blue and Giauque, 1935
Blue, R.W.; Giauque, W.F., The Heat Capacity and Vapor Pressure of Solid and Liquid Nitrous Oxide. The Entropy from its Band Spectrum, J. Am. Chem. Soc., 1935, 57, 6, 991-997, https://doi.org/10.1021/ja01309a008 . [all data]

Black, van Praagh, et al., 1930
Black, H.K.; van Praagh, G.; Topley, B., Note on the vapour pressure of solid nitrous oxide, Trans. Faraday Soc., 1930, 26, 196, https://doi.org/10.1039/tf9302600196 . [all data]

Notes

Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), References

• Symbols used in this document:
  

  Pc	Critical pressure
  Ptriple	Triple point pressure
  Tc	Critical temperature
  Vc	Critical volume
  ΔfusH	Enthalpy of fusion
  ΔsubH	Enthalpy of sublimation
  ΔvapH	Enthalpy of vaporization
  ρc	Critical density

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