Solubilities of some tetra‐alkyl‐carbon, ‐silicon,‐germanium and ‐tin compounds in mixtures of water with methanol, ethanol, dioxane, acetone and acetic acid and differences between the standard chemical potentials of these solutes in their solutions in water and in the mixed or nonaqueous solvents, at 25°C

The solubilities at 25° of 2.2‐dimethylpropane, 3,3‐diethylpentane and tetraethylsilicane have been determined in mixtures of water with methanol, ethanol, dioxane, acetone and acetic acid. The solubilities of tetramethylsilicane, tetramethylgermanium, tetramethyltin, tetraethyltin and tetrapropylgermanium have been determined in mixtures of water with methanol only. All determinations have been performed using gas chromatography. The differences between the standard chemical potentials of these solutes in their solutions in water and in the mixed or nonaqueous solvents have been calculated. The applicability of Pierotti's theory to the solutions in water, methanol, ethanol and acetone, and also in N‐methylformamide, has been investigated.