A semi‐empirical method is reported for predicting the temperature coefficient of gas solubility for regular solutions. It appears to be capable of describing the temperature coefficient to an accuracy approaching that of the solubility measurements themselves. The method requires a knowledge of the solvent solubility parameter and critical temperature, as well as at least one solubility (at any temperature) of the gas in the particular solvent. New data for the solubilities of methane in hexane, heptane, octane, dodecane and hexadecane, over the temperature range (where possible) from O°C to 75°C along with a large number of previously published data are used to show the effectiveness of the proposed method.
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Hayduk et al. (1971) studied this question.
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