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.

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.

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.

An amendment to a second-order group additivity method for the estimation of the heat capacity of pure organic liquids as a function of temperature in the range from the melting temperature to the normal boiling temperature is reported. The temperature dependence of various group contributions and structural corrections is represented by a series of second order polynomial expressions. The group contribution parameters have been developed from an extended database of more than 1800 recommended heat capacity values. The present method should be more versatile and more accurate than the previous one ͓Růžička and Domalski, J. Phys. Chem. Ref. Data 22, 597, 619 ͑1993͔͒ due to the use of a larger database and an improved procedure for parameter calculation.

Heat capacities of liquid C 1 to CIS l-alkanols measured by calorimetric methods were compiled and evaluated. The selected experimental data were fitted as a function of temperature with cubic splines using weighted least squares minimization. The parameters of the cubic spline polynomials and the recommended values for heat capacities are presented. A new quasi-polynomial equation which permits extrapolation of heat capacities outside the temperature range of experimental values was derived and its parameters for C I to C lO I-alkanols are presented.