Cetyl hydrate palmitate

Cetyl hydrate—Cetylio alcohol—CieHasOH—242—is obtained by the saponification of spermaceti (its palmitic ether). It is a white, crystalline solid fusible at 49° (120°. 2 F.) insoluble in HaO soluble in alcohol and ether tasteless and odorless. 

Nonloaded and loaded SLN were already investigated with respect to use in cosmetics. Although adequate controls are difficult to prepare, first experiments indicate an increase in skin hydration and a reduction in wrinkle depth following SLN application [68]. Moreover, cetyl palmitate-nanodispersions act both as particulate ultraviolet (UV) blockers themselves and as carriers for UV absorbing agents (e.g., 2-hydroxy-4-methoxy benzophenone Eusolex 4360). This results in a threefold... 

Palmitic acid occurs naturally in all animal fats as the glyceride, palmitin, and in palm oil partly as the glyceride and partly uncombined. Palmitic acid is most conveniently obtained from olive oil after removal of oleic acid, or from Japanese beeswax. Synthetically, palmitic acid may he prepared hy heating cetyl alcohol with soda lime to 270°C or hy fusing oleic acid with potassium hydrate. 

Margario add—C, H CO,OH—270—formerly supposed to exist as a glyceride in all fats, solid and.liquid. What had been taken formargaric acid was a mixture of 90 per cent of palmitic and 10 per cent of stearic acid. It is obtained by the action of potassium hydrate upon cetyl cyanide, as a white, crystalline body fusible at 59 .9 (1 F.). 

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