Diffraction of X-rays by aluminum dilaurate and aluminum distearate

Abstract

The aluminum di-soaps appear to have a crystal structure analogous to the sodium soaps, that is, the metal atoms are arranged in a double layer from which the fatty acid radicals extend in opposite directions, end to end. Hence in the aluminum di-soaps the two acid radicals attached to any aluminum atom lie side by side. Aluminum di-soaps produced by precipitation and extraction at higher temperatures have a monoclinic angle of 48°. Those produced at low temperature and extracted at low temperature have a higher value, β, of 60°.