High-oleic acid safflower oil has been shown to have high-temperature oxidative stability con> parable with that of hydrogenated vegetable oils. This stability, added to the ease of handling at low temperatures, should make the oil attractive as a commercial cooking oil. Epoxidation of the new safflower oil led to a product similar to epoxidized olive oil but lighter in color.

The effects of temperature and media on the fusion of ricinoleic and lesquerolic acid derivatives with concentrated aqueous alkali were examined. Improved yields of३‐hydroxy acids were obtained by use of excess 2‐octanol. The effect of excess 2‐octanol is discussed in relation to a recently proposed reaction mechanism.

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The fatty acid composition of Dimorphotheca sinuata seed oil was determined by use of column and gas-liquid chromatography (GLC), and UV, IR, and nuclear magnetic resonance (n.m.r.) spectroscopy. The presence of a small amount of epoxy esters was confirmed by n.m.r, spectroscopy in conjunction with GLC and TLC. The presence of ca. 2.5% of 9-keto-trans,trans-lO,12-oetadeeadienoie acid, previously unrecognized as a constituent of dimorphotheea oil, was established. The estimated fatty acid composition of dimorphotheca oil is 66.5% dimorpheeolic, 14% linoleie, 10% oleie, 4.5% palmitic and stearie, and 5% miscellaneous acids.

Chromatostrips provide a rapid and convenient method of examination of samples by spot tests and by ascending or descending chromatography. Ascending chromatography for the examination of mixtures is carried out on 12ȕ140‐mm. glass strips coated with 5% starch‐bonded silicic acid, while descending chromatography is done on 12ȕ200‐mm. strips. The 5% starch‐bonded silicic acid coatings are resistant to normal handling, may be marked with a soft lead pencil, and may be stored indefinitely for reference. Three detection systems are employed: fluorescent minerals for conjugated unsaturates, fluorescein‐bromine for unsaturates, and 2艂,7艂‐dichlorofluorescein for all types of compounds. Positive tests result in characteristic spots when observed under normal or ultraviolet illumination. This permits the classification of components, after separation on the chromatostrips, into the groupings of conjugated unsaturated, unsaturated (or easily brominated), and saturated compounds.