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Aniline hydrobromide

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Condensed phase thermochemistry 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: Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of solid

Cp,solid (J/mol*K) Temperature (K) Reference Comment
159.62298.75Suga, 1961T = -74 to 67°C. Value is unsmoothed experimental datum.

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: Eugene S. Domalski and Elizabeth D. Hearing

Enthalpy of phase transition

DeltaHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
1.142230. - 300.crystaline, IIcrystaline, IKojima, 1978Peak at 295 K for order-disorder transition which extends over a 70 K range (230-300 K).
1.243293.crystaline, IIcrystaline, ISuga, 1961 

Entropy of phase transition

DeltaStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
3.87230. - 300.crystaline, IIcrystaline, IKojima, 1978Peak
4.60293.crystaline, II, Values obtained by summing excess specific heat betweencrystaline, I, 20øC and transition temperatureSuga, 1961 

IR Spectrum

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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: Coblentz Society, Inc.

Condensed Phase Spectrum

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IR spectrum
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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.

Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

Additional Data

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Owner COBLENTZ SOCIETY
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin STANDARD OIL OF OHIO
Source reference COBLENTZ NO. 4349
Date Not specified, most likely prior to 1970
State SOLID (MINERAL OIL MULL)
Instrument Not specified, most likely a grating spectrometer.
Path length
SPECTRAL CONTAMINATIN DUE TO OIL AROUND 2600 CM-1
Resolution 4
Sampling procedure TRANSMISSION
Data processing DIGITIZED BY NIST FROM HARD COPY
Melting point 283 C

This IR spectrum is from the Coblentz Society's evaluated infrared reference spectra collection.


References

Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Notes

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

Suga, 1961
Suga, H., On the orientational order-disorder transition in crystalline aniline hydrobromide, Bull. Chem. Soc. Jpn., 1961, 34, 426-433. [all data]

Kojima, 1978
Kojima, T., Thermal measurement of aniline hydrobromide, Kinki Diagaku Rikogakuba Kenkyu Hokoku, 1978, 18, 41-43. [all data]


Notes

Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, References