“…The method of Kaufmann (72), which involves reaction with bromine in methanol followed by titration of the excess bromine with arsenite solution, has been found more accurate than other methods for the determination of the iodine numbers of several «, ß unsaturated acids (129). Similarly the iodine numbers of several phenols, cholesterol, limonene, naphthalene, oleic acid, and various essential oils have been determined in acetic acid solution (148).…”