Solubility of C70 in Organic Solvents

The solubility of C⁷⁰ in various organic solvents has been measured at 303 K for the first time. The solubilities vary from 2 μg/ml in pentane to 36 mg/m1 in o-dichlorobenzene. The solubility is correlated with solvent properties such as Hildebrand solubility parameter and polarisability. The solubility parameter shows good correlation with the solubility for most of the organic solvents studied, with the exception of carbon disulphide and o-dichlorobenzene. The polarisability parameter also explains the wide range of solubility in various organic solvents. However, both the solvent parameters do not satisfactorily explain the trend in the observed solubility over the entire range of solvents.