Abstract The rate of hydrogenation of 6-ethyl-1, 2, 3, 4-tetrahydroanthracene-9, 10-dione was investigated at 313 K and 0.1 MPa in 20 solvents. A multiple linear regression was used to describe the solvent effect. The regression of the reaction rates was carried out using two five-parameter linear regression models: the Abraham–Kamlet–Taft (AKT) and the Koppel– Palm (KP) model. After the elimination of the insignificant terms from the regression ...