An estimation method, which was developed by S. W. Benson and coworkers for calculating the thermodynamic properties of organic compounds in the gas phase, has been extended to the liquid and solid phases for organic compounds at 298.15 K and 101,325 Pa. As with a previous paper dealing with hydrocarbon compounds, comparisons of estimated enthalpies of formation, heat capacities, and entropies with literature values show that extension of the Benson’s group additivity approach to the condensed phase is easy to apply and gives satisfactory agreement. Corresponding values for the entropy of formation, Gibbs energy of formation and natural logarithm of the equilibrium constant for the formation reaction are also calculated provided necessary auxiliary data are available. This work covers 1512 compounds containing the elements: carbon, hydrogen, oxygen, nitrogen, sulfur, and halogens in the gas, liquid, and solid phases. About 1000 references are provided for the literature values which are cited. §

This compilation of data on the and of in the condensed phase is a cumulative document and includes the following earlier published work on this subject: ‘‘Heat Capacities and of in the Condensed Phase,’’ E. S. Domalski, W. H. Evans, and E. D. J. Phys. Chem. Ref. Data 13, Suppl. 1 (1984) and ‘‘Heat Capacities and of in the Condensed Phase, Volume II,’’ E.S. Domalski and E.D. J. Phys. Chem. Ref. Data 19, 881–1047 (1990). In addition, the literature through 1993 has been searched and the pertinent data reported has been included in Volume III. The latter volume provides data on 5332 individual entries for 2503 discrete for which over 2200 articles have been examined, evaluated, and referenced. In addition to values for the and at 298.15 K, for solid/solid, solid/liquid, and in some instances, solid/gas and liquid/gas are tabulated as encountered in the articles examined and evaluated.

A study was carried out in which new experimental data on heat capacities of pure liquid organic and some inorganic compounds were compiled, critically evaluated, and recommended values provided. Compounds included in the compilation have a melting point below 573 K. The bulk of the compiled data covers data published in the primary literature between 1993 and 1999 and some data of 2000. However, some data from older sources were also included. The data were taken from almost 1030 literature references. Parameters of correlating equations for temperature dependence of heat capacities of liquids were developed. This paper is an update of a two volume monograph entitled Heat Capacity of Liquids: Critical Review and Recommended Values ͑96ZAB/RUZ͒ that was published in 1996 in the Journal of Physical and Chemical Reference Data as Monograph No. 6 and was the product of the IUPAC Project No. 121/11/87.

Selected values of the heats of combustion and heats of formation of 719 organic compounds are reported here. The data tabulated pertain to compounds containing the elements carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur (CHNOPS). The information is arranged according to classes of compounds and within each class, compounds are arranged by empirical formula. The general classes covered are: hydrocarbons, alcohols, phenols, polyols, ethers, aldehydes, ketones, acids, acid anhydrides, esters, steroids, lactones, carbohydrates, heterocyclic oxygen compounds, amines, amides, urea derivatives, guanidine derivatives, amino acids, peptides, alkaloids, heterocyclic nitrogen compounds, porphyrins, organic sulfur compounds, and organic phosphorus compounds. When a selection was made from among several investigators, commentary is provided to indicate the choice, and usually some relevant data. The number of references cited is 596. An alphabetical compound index is provided which gives the name, page number, empirical formula, and the Wiswesser Line Notation (WLN), for each compound.

An estimation method developed by S.W. Benson and coworkers, for calculating the thermodynamic properties of organic compounds in the gas phase, has been extended to the liquid and solid phases for hydrocarbon compounds at 298.15 K. The second order approach which includes nearest neighbor interactions has been applied to the condensed phase. A total of 1311 comparisons are made between experimentally determined values and those calculated using additive group values. Of the 559 comparisons given for the enthalpy of formation (ArHO) in the gas, liquid, and solid phases, the average difference (residual), without regard to sign, is 2.6 kJ/mol. The average differences for 390 comparisons for the heat capacity (C p 0) and 352 comparisons for the entropy (SO) in the three phases are 1.9 and 2.3 J/mol•K, respectively. The good agreement between experimental and calculated values shows that the Benson group additivity approach to the estimation of thermodynamic properties of organic compounds is applicable to the liquid and solid phases as well as the gas phase. Appendices provide example calculations of the thermodynamic properties of selected hydrocarbon compounds, total symmetry numbers, and methyl repulsion corrections. Most of the 144 references listed offer an indication of the activity in the development of estimation methods for calculating thermodynamic properties since 1931.

The errata are arranged in the format shown below and are listed as found according to successive pages in the 1996 Monograph No.6. After the page number for specific erratum, there is information provided which indicates the location on the specific erratum on a given page, such as: number and name of table, reference squib, compound name or other pertinent information. If a given error occurs on more than one page, the page numbers are listed for occurrence of each error in a block of consecutive lines. Next, the erratum appears as it is found in the publication; thereafter one finds the correction. The last line offers a comment or explanation about the erratum.

The errata are arranged in the format shown below and are listed as found according to successive pages in the 1996 publication, J. Phys. Chem. Ref. Data 25, 1-525 ͑1996͒. After the page number for a specific erratum, which is shown on the extreme left side of the first line, information is provided regarding its location on a given page, such as: compound formula, compound name, reference squib, or other pertinent information. On the second line, the erratum appears as found in the publication. On the third line, one finds the correction. The last line offers a comment or explanation about the erratum.

A study was carried out in which new experimental data on heat capacities of pure liquid organic and some inorganic compounds were compiled and critically evaluated and recommended values provided. The bulk of the compiled data covers data published in the primary literature between 2000 and 2006 and includes some data published in 2007. However, some data from older sources are also included. The list of compound families covered was extended to include ionic liquids. Parameters of correlating equations for the temperature dependence of heat capacities of liquids were developed. This paper is an update of a two volume monograph entitled Heat Capacity of Liquids: Critical Review and Recommended Values by Zábranský et al. [J. Phys. Chem. Ref. Data 30, 1199 (2001)], which was published in 1996 in the Journal of Physical and Chemical Reference Data as Monograph No. 6, and of Supplement I.