The Abraham general solvation model is used to calculate the numerical values of the solute descriptors for benzil from experimental solubilities in organic solvents. The mathematical correlations take the form $$\log ({{C_{S}} \mathord{\left/ {\vphantom {{C_{S}}{C_{W}}}} \right. \kern-\nulldelimiterspace} {C_{W}}}) = c + r \cdot R_2 + s \cdot {\pi }_{2}^{H} + a \cdot \sum {\alpha _2^{H} + b \cdot \sum {\beta _2^{H} + v \cdot V_{x}}}$$ $$\log ({{C_{S}} \mathord{\left/ {\vphantom {{C_{S}}{C_{G}}}} \right. \kern-\nulldelimiterspace} {C_{G}}}) = c + r \cdot R_2 + s \cdot {\pi }_{2}^{H} + a \cdot \sum {\alpha _2^{H} + b \cdot \sum {\beta _2^{H} + l \cdot \log L^{[16]} } } $$ where C S and C W refer to the solute solubility in the organic solvent and water, respectively, C G is a gas-phase concentration, C 2 is the solute excess molar refraction, V x is the McGowan volume of the solute, $$\sum {\alpha _2^{H}}$$ and $$\sum {\beta _2^{H}}$$ are measures of the solute hydrogen-bond acidity and basicity, $${\pi }_{2}^{H}$$ denotes the solute dipolarity/polarizability descriptor, and L [16] is the solute gas-phase dimensionless Ostwald partition coefficient into hexadecane at 25°C. The remaining symbols in the above expressions are known solvent coefficients, which have been determined previously for a large number of gas/solvent and water/solvent systems. We estimate R 2 as 14.45 cm3-mol−1 and calculate V x as 163.74 cm3-mol−1, and then solve a total of 51 equations to yield $${\pi }_{2}^{H}$$ = 1.59, $$\sum {\beta _2^{H}}$$ = 0.620 and log L [16] = 7.6112. These descriptors reproduce the 51 observed log(C S/C W) and log(C S/C G) values with a standard deviation of only 0.115 log units.