The solubilities of 1-chlorododecane, 1-iodododecane, 1-bromotetradecane, and 1-iodohexadecane have been determined in benzene, cyclohexane, carbon tetrachloride, chloroform, ethyl acetate, acetone, 95% ethanol, and n-butanol. Additional solubilities of 1-iodododecane have been determined in diethyl ether, butyl acetate, 2-butanone, methanol, 2-propanol, aniline, and acetonitrile. The solubility behavior of these 1-haloalkanes has been compared with that of the corresponding hydrocarbons. 1951, American Chemical Society. All rights reserved.