The intercalation of octylamine into H-magadiite was investigated in n-hexane, hexadecane, 2,2,4-TMP, and mesitylene at room temperature, Equilibrium of uptake is reached after 48 hr for all solvents. Uptake increased with increased of concentration of octylamine and also exhibited the influence of the specific solvent used, The basal spacings of organic solvent/octylammonium- magadiite gels were shown to increase by 2-8 Angstrom compared with those of octylammonium magadiite gel prepared with no solvent, The results suggest that gallery height can be affected by the solvation of intercalated octylamine as well as by the steric effect of solvated molecules.