The extraction of tris(raalonato) chromate(III) by solutions of Aliquat-336 in various organic solvents such as n-pentane, n-heptane, cyclohexane, chloroform, carbon tetrachloride, o-xylene,benzene, toluene, nitrobenzene and nitromethane has been studied. The effect of the organic solvent on the extraction is correlated with their solubility parameters by application of the theory of regular solutions. The solubility parameter of the extracted species is reported.