Ammonium Chloride - The NIST WebBook

Ammonium Chloride

• Formula: ClH4N
• Molecular weight: 53.491
• IUPAC Standard InChI: InChI=1S/ClH.H3N/h1H;1H3 Copy
• IUPAC Standard InChIKey: NLXLAEXVIDQMFP-UHFFFAOYSA-N Copy
• CAS Registry Number: 12125-02-9
• Chemical structure: This structure is also available as a 2d Mol file
• Species with the same structure:
  • Ammonium chloride
• Other names: (NH4)Cl; Ammonium chloride ((NH4)Cl); Amchlor; Ammoneric; Ammoniumchlorid; Ammonium muriate; Chlorid amonny; Darammon; SAL AMMONIA; SAL AMMONIAC; Salammonite; Salmiac; Ammonium chloride fume; Ammonium uriate; Katapone VV-328; Quaternary ammonium chloride
• Information on this page:
  • Phase change data
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • IR Spectrum
  • Mass spectrum (electron ionization)
• Data at other public NIST sites:
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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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

Quantity	Value	Units	Method	Reference	Comment
ΔsubH°	177.	kJ/mol	N/A	Luft, 1955

Enthalpy of sublimation

ΔsubH (kJ/mol)	Temperature (K)	Method	Reference
168.6	550.	I	Callanan and Smith, 1971
176.6 ± 0.4	308. to 363.	TE	Wagner and Neumann, 1961

References

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

Luft, 1955 Luft, N.W., Ind. Chemist, 1955, 31, 502. [all data]

Callanan and Smith, 1971 Callanan, Jane E.; Smith, Norman O., Sublimation pressures of solid solutions III. NH4Cl + NH4Br, The Journal of Chemical Thermodynamics, 1971, 3, 4, 531-538, https://doi.org/10.1016/S0021-9614(71)80036-8 . [all data]

Wagner and Neumann, 1961 Wagner, Horst; Neumann, Kurt, Der Dampfdruck des Ammoniumchlorids zwischen 35 und 90°C, Zeitschrift für Physikalische Chemie, 1961, 28, 12, 51-70, https://doi.org/10.1524/zpch.1961.28.12.051 . [all data]

Notes

Go To: Top, Phase change data, References

• Symbols used in this document:

  ΔsubH	Enthalpy of sublimation
  ΔsubH°	Enthalpy of sublimation at standard conditions

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