Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

Acetic acid, potassium salt

Data at NIST subscription sites:

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.


Condensed phase thermochemistry data

Go To: Top, Phase change data, Mass spectrum (electron ionization), NIST Free Links, 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: E.S. Domalski and E.D. Hearing

Quantity Value Units Method Reference Comment
solid,1 bar150.82J/mol*KN/ANgeyi, Malik, et al., 1990 

Constant pressure heat capacity of solid

Cp,solid (J/mol*K) Temperature (K) Reference Comment
109.38298.15Ngeyi, Malik, et al., 1990T = 4 to 585 K.

Phase change data

Go To: Top, Condensed phase thermochemistry data, Mass spectrum (electron ionization), NIST Free Links, 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, M. Frenkel director
DH - E.S. Domalski and E.D. Hearing

Quantity Value Units Method Reference Comment
Tfus582.KN/ANgeyi, Malik, et al., 1990Crystal phase 1 phase; Uncertainty assigned by TRC = 2. K; TRC
Tfus578.7KN/AFerloni, Sanesi, et al., 1975Crystal phase 1 phase; Uncertainty assigned by TRC = 0.2 K; TRC

Temperature of phase transition

Ttrs (K) Initial Phase Final Phase Reference Comment
332.crystaline, IIIcrystaline, IIHouse and Kemper, 1990DH

Enthalpy of phase transition

DeltaHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
0.2454429.5crystaline, IIcrystaline, IHouse and Kemper, 1990DH
0.34671411.crystaline, IIIbcrystaline, IIIaNgeyi, Malik, et al., 1990DH
0.18957425.crystaline, IIIacrystaline, IINgeyi, Malik, et al., 1990DH
1.613474.crystaline, IIcrystaline, INgeyi, Malik, et al., 1990DH
7.649582.crystaline, IliquidNgeyi, Malik, et al., 1990Crystal to isotropic liquid.; DH
0.420423.crystaline, IIcrystaline, IFerloni, Sanesi, et al., 1975, 2DH
15.230578.7crystaline, IliquidFerloni, Sanesi, et al., 1975, 2DH

Entropy of phase transition

DeltaStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
0.577429.5crystaline, IIcrystaline, IHouse and Kemper, 1990DH
0.8065411.crystaline, IIIbcrystaline, IIIaNgeyi, Malik, et al., 1990DH
0.4157425.crystaline, IIIacrystaline, IINgeyi, Malik, et al., 1990DH
3.3840474.crystaline, IIcrystaline, INgeyi, Malik, et al., 1990DH
13.137582.crystaline, IliquidNgeyi, Malik, et al., 1990Crystal; DH
1.0423.crystaline, IIcrystaline, IFerloni, Sanesi, et al., 1975, 2DH
26.3578.7crystaline, IliquidFerloni, Sanesi, et al., 1975, 2DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Mass spectrum (electron ionization)

Go To: Top, Condensed phase thermochemistry data, Phase change data, NIST Free Links, 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 Spec Data Center, S.E. Stein, director

Spectrum

Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.

Mass spectrum
For Zoom
1.) Enter the desired X axis range (e.g., 100, 200)
2.) Check here for automatic Y scaling
3.) Press here to zoom

Additional Data

View image of digitized spectrum (can be printed in landscape orientation).

View spectrum image in SVG format.

Download spectrum in JCAMP-DX format.

Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin E. White V, SmithKline Corp.
NIST MS number 353309

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), NIST Free Links, Notes

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

Ngeyi, Malik, et al., 1990
Ngeyi, S.P.; Malik, I.; Westrum, E.F., Thermodyanamics of alkali alkanoates VII. Heat capacity and thermodynamic functions of potassium acetate from 4 to 585 K, J. Chem. Thermodynam., 1990, 22, 91-98. [all data]

Ferloni, Sanesi, et al., 1975
Ferloni, P.; Sanesi, M.; Franzosini, P., Phase transitions in the alkali C1-n.C4 alkanoates, Z. Naturforsch., A: Phys., Phys. Chem., Kosmophys., 1975, 30, 1447-57. [all data]

House and Kemper, 1990
House, J.H.; Kemper, K.A., Phase transitions and their thermal hysteresis in anhydrous potassium acetate, Thermochim. Acta, 1990, 162(2), 325-331. [all data]

Ferloni, Sanesi, et al., 1975, 2
Ferloni, P.; Sanesi, M.; Franzosini, P.; C4 alkanoates, Phase transitions in the alkali C1-n., Z. Naturforsch. 30a, 1975, 1447-1454. [all data]


Notes

Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), NIST Free Links, References