Part 1. The solubility of tetrachloromethane (1) in water (2) has been studied by 41 workers. The experimental data of most investigators in the 273 to 303 K temperature interval are sufficiently reliable to use in a smoothing equation. Even though a number of measurements above 308 K were reported, the solubility values in this temperature range are rather uncertain and are classified as doubtful.

The experimental work of several workers was not used for the smoothing equation for a variety of reasons. The measured solubility of Booth and Everson (refs. 1 and 2) and of Karger et al. (ref. 3) are markedly higher than the solubility values calculated from the smoothing equation. The measurements by Powell (ref. 4), Tettamanti et al. (ref. 5), Svetlanov et al. (ref. 6), Antropov et al. (ref. 7), Simonov et al. (ref. 8), Sato and Nakijima (ref. 9), Coca et al. (ref. 10), Balls (ref. 11), Yoshioka et al. (ref. 12), Howe et al. (ref. 13), and Wright et al. (ref. 14) are all several per cents lower than the smoothed solubility values and have also been rejected. The solubilities calculated from the distribution coefficients of Prosyanov et al. (ref. 15) are in very poor agreement, giving little confidence in their values which were regarded as dubious.

The remaining data from 26 laboratories were compiled or used for the smoothing equation. The data are also shown in Figure 1. The fitting equation obtained for mass per cent (1) is given by:

The equation represents the combined data points which yield a standard deviation of 5.8 × 10^–3 in the 273 to 308 K temperature range.

The curve obtained from the smoothing equation shows a distinct minimum at 294 K, as seen in Figure 1. The existence of the minimum solubility is discussed in the Preface.

The recommended solubility values at 5 K intervals for tetrachloromethane (1) in water (2) are presented in Table 1.
Part 2. The solubility of water (2) in tetrachloromethane (1) has been reported by 37 laboratories since 1921. The solubility measurements cover the 273 to 373 K temperature range, see Figure 2. However, the data available above 323 K originate from only two investigators (refs. 16 and 17). The recommended solubility values are limited to the 283 to 307 K temperature interval.

Although data from all the workers show a general increase in solubility with temperature, the extent of the increase is variable above 313 K.

The data of Bell (ref. 18), Niini (ref. 19), and Fox and Martin (ref. 20) are substantially lower than all other studies and they have been rejected. The data of Eberius (ref. 21), Zielinski (ref. 22), Grigsby (ref. 23), Goldman (ref. 24), Ohtsuka and Kazama (ref. 25), and Kleeberg et al. (ref. 26) are significantly higher than the likely solubility and were also rejected. The remaining data mainly due to Clifford (ref. 27), Rosenbaum and Walton (ref. 28), Staverman (ref. 29), Hutchison and Lyon (ref. 30), McGovern (ref. 31), Donahue and Bartell (ref. 32), Rotariu et al. (ref. 33), Greinacher et al. (ref. 34), Desnoyer (ref. 35), Tettamanti et al. (ref. 5), Johnson et al. (refs. 36 and 37), Johnson (ref. 38), Christian et al. (ref. 39), Högfeldt and Fredlund (ref. 41), Simonov et al. (refs. 8, 41 and 42), Glasoe and Schultz (ref. 43), Antropov et al. (ref. 7), Kirchnerova (ref. 44), Kirchnerova and Cave (ref. 45), Coca et al. (ref. 10), Ksiazczak and Buchowski (ref. 46), Wu (ref. 17), and Orlandini et al. (ref. 47) are in good agreement, especially the values given in (refs. 31, 43, and 17).

The correlating equation for the combined solubilities of water in tetrachloromethane between 283 and 308 K is as follows:

This equation yielded a standard deviation of 1.5 x 10^-3 in the 273 to 308 K temperature range.

The recommended mass per cent solubility values at 5 K intervals for water in tetrachloromethane are presented in the Table 2.

Experimental Data:   (Notes on the Nomenclature)