Prediction of non-polar gas solubilities in water, alcohols and aqueous alcohol solutions by the modified asog method

• Published in: Fluid phase equilibria Vol. 8; no. 3; pp. 221 - 232
• Main Authors: Tochigi, K., Kojima, K.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 1982
• ISSN: 0378-3812; 1879-0224
• DOI: 10.1016/0378-3812(82)80036-8

Tochigi, K. and Kojima, K., 1982. Prediction of non-polar gas solubilities in water, alcohols and aqueous alcohol solutions by the modified ASOG method. Fluid Phase Equilibria, 8: 221–232. The non-polar gas solubilities in water, alcohols and aqueous alcohol solutions are correlated and predicted by the modified ASOG method for a gas partial pressure of 1 atm and a temperature range of 10°C to 40°C. Solubilities in normal alcohols from methanol to octanol are considered. The non-polar gaseous solutes are oxygen, nitrogen, hydrogen, carbon dioxide, argon, methane, ethane, ethylene, propane and butane. The gas solubilities are first correlated and then predicted in pure solvents. Next, the gas solubilities are predicted for mixed solvents by using group pair parameters determined only from the data for gas solubilities in pure solvents. The deviation between the observed and the predicted gas solubilities is 6.0% in pure and 10.2% in mixed solvents.