Title: Heat capacity of liquids: critical review
and recommended values for liquids with data published between 2000
Domalski, Zdenka Kolská,
To update and extend two publications that contained recommended data
on liquid heat capacities for almost 2000 mostly organic compounds,
"Heat Capacity of Liquids: Critical Review and Recommended Values"
(1) and its "Supplement I" (2) by M. Zábranský,
V. Ruzicka, V. Majer, and E.S. Domalski published in Journal of
Physical and Chemical Reference Data in 1996 and 2001. The publications
were the product of IUPAC Projects 121/11/87 and 2000-031-1-100.
(1) J. Phys. Chem. Ref. Data, Monograph No. 6
(2) J. Phys. Chem. Ref. Data 30, 1199 (2001); doi:10.1063/1.1407866
Experimental data on heat capacities of pure liquid organic and
some inorganic compounds published in the primary literature between
2000 and 2004 will be compiled, critically evaluated and recommended
values provided. Recommended data supplemented with an assessment
of their uncertainty and presented in terms of parameters of correlating
equations for temperature dependence of heat capacities will be developed
by critical assessment of literature calorimetrically determined heat
capacities. The work will be an update of a two-volume monograph,
that was published in 1996 as a Monograph No.6 of the Journal of
Physical and Chemical Reference Data, and of its Supplement I,
published in J. Phys. Chem. Ref. Data 30, 1199-1689 (2001).
The updated and extended database will contain data for about 250
compounds taken from more than 120 literature references. The whole
work consisting of the monograph and of its two supplements will also
provide an exhaustive survey of the literature for all isobaric and
saturation heat capacities for pure organic and inorganic compounds
in the liquid state having a melting point below 573 K. The literature
survey includes references to the original paper and to the description
of the experimental equipment used for heat capacity data determination
and serves as a valuable source of references. The overall number
of compounds in the whole database of recommended data will exceed
June 2005 - The new literature search has located about 150
papers that report results for calorimetric measurements of liquid
heat capacities of about 300 compounds having their melting temperature
below 573 K. The existing database for experimental results is being
expanded to include these new results and will be complete during
June 2007 - Updating the databases of experimental
data has been completed. New data on calorimetrically measured liquid
heat capacities of compounds having their melting temperature below
573K published in 193 primary literature sources between 1999 and
2006 were entered into computer readable databases. Compounds were
divided into several families. New data for 411 compounds were entered,
out of them 202 compounds being new additions, not covered in the
previous work. That represents 479 new data sets, each data set consisting
of a table of heat capacity and the corresponding temperature. The
new additions include data for 3 inorganic compounds and for 50 ionic
liquids. Most of the new data cover organic substances (408 compounds,
202 of them new additions).
Data for all compounds from the current databases including
the new data are presently being correlated.
At present the timetable is as follows:
1. Nov 2007: completion of critical assessment of data, correlation
2. Feb 2008: submission of manuscript for publication in J. Phys.
Chem. Ref. Data
Dec 2007 - Separately, an extension of the estimation
method for heat capacity of liquids as a function of temperature utilizing
the updated database of recommended data (Kolská, Z.; Kukal,
J., Zábranský, M., Ruicka, V. Estimation of the
Heat Capacity of Organic Liquids as a Function of Temperature by a
Three-Level Group Contribution Metho) has been submitted for publication
to Ind. Eng. Chem. Res.
Last update: 14 December 2007
<project announcement published
Page last modified 14 December 2007.
Copyright ©1997-2007 International Union of Pure and Applied Chemistry.
Questions or comments about IUPAC, please contact, the Secretariat.
Questions regarding the website, please contact web