PRESENCE OF SOLID PHASES 253
A. The ternary eutectic point, 253. Formation of compounds,
255. B. Equilibria at higher temperatures. Formation
of double salts, 258. Transition point, 258. Vapour pressure.
{xv}
Quintuple point, 261. Solubility curves at the transition point,
264. Decomposition of the double salt by water, 267. Transition
interval, 270. Summary, 271.