INDUSTRIAL AND ENGINEERING CHEMISTRY
2320
faintly resolvable shoulders may reflect the fact that partial recrystallization has occurred, but the crystallites must be very small or imperfect. Iron, cobalt, and nickel soaps appear to have been in a pseudoglassy state initially. Thermal treatnient does no1 effect any further changes except in the case of nickel ,soaps where the patterns were slightly more sharply defined initially, so that broadening of tlie lines and reduction of intensity iri the long spacings after heating are noticeable. Tn summarize, after tlie thermal treatiiient, aluminuni soaps and iron, cobalt, and nickel soaps. which were essentially noncrystalline at first, are unchanged. Zinc palniitntc ani1 lithium stearate have recrystallized completely and give patterns as sharp as or sharper than the original arid showiiig no iniportnnt changes in line position or intensity. ;\11 the others 3pp:lre:ltly a,re in varying stages intermediate hetween thcir original i t a t r and an undercooled form usually c1i;iraoterizrcl 1))- :I sliglitly hli
