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Gas‐liquid chromatography (GLC) of ethylene oxide adducts of fatty alcohols is carried out after conversion of the alcohols to aetate esters. This conversion permits detection of higher mol wt compounds. Separate peaks for adducts with up to 13 units of ethylene oxide are obtained for a product derived from dodecyl alcohol. The procedure is used to follow the course of a molecular distillation of an adduct prepared from hexadecyl alcohol and an example is also shown for an adduct derived from a mixture of dodecyl and tetradecyl alcohols.

Summary The anhydrides of decanoic, lauric, myristic, palmitic, stearic, and oleic acids have been prepared in better than 90% yields through the corresponding acid chlorides with acetic anhydride. Oleic anhydride could only be prepared satisfactorily when oleoyl chloride was prepared, in turn, with oxalyl chloride. A comparison has been made of the various synthetic methods.

Some applications of rubber powder as a sta‐tionary phase in the Chromatographie separation of relatively nonpolar compounds are described. Evidence of a substantial degree of separation of triglyceride components in coconut oil and linseed oil is obtained using a mixture of methanol and acetone as the mobile phase. Separations of trilaurin from mono and dilaurin, of methyl esters of coconut oil fatty acids and of compo‐nents in Oil of Petitgrain are also accomplished.

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