D Deliquescence, 130 Devitrification, 73 Diethylamine and water, solubility of, 101 Dilatometer, determination of transition points by, 331 Dineric surface, 247 Dissociation equilibrium, effect of addition of dissociation products on, 4 ---- of ammonia compounds of metal chlorides, 82, 84 ---- of ammonium chloride, 3, 79 ---- ---- cyanide, 80 ---- ---- hydrosulphide, 80 ---- of calcium carbonate, 3, 81 ---- of compounds, degree of, 147 ---- of phosphonium bromide, 80 ---- of salt hydrates, 85 ----, phenomena of, 79 Dissociation pressure, 81 Distillation of supercooled liquid to solid, 32, 50 Double salt interval, 278 ---- salts, crystallization from solution, 280 ---- ----, decomposition by water, 267 ---- ----, formation of, 258, 273, 315 E Efflorescence, 86 Electrical methods of determining transition points, 338 Enantiotropy, 44, 51 Equilibria, Gibbs's theory of, 8 ----, metastable, 69 Equilibrium apparent (false), 5, 6 ---- between ice and solution, 116 ---- between ice and water, 25 ---- between ice, water, vapour, 27 ---- between water and vapour, 21 ----, chemical, 3, 16 ----, heterogeneous, 5 ----, homogeneous, 5 ----, independence of, on amounts of phases, 9 ----, law of movable, 58 {346} ----, physical, 3, 16 ---- real (true), 5, 6 Ether, alcohol, water, 246 ----, succinic nitrile, water, 252 Ethylene bromide, picric acid, [beta]-naphthol, 256 Eutectic mixtures, 117, 191, 209, 255, 257 ---- point, 117, 209, 213, 253 F Ferric chloride, evaporation of solutions of, 155 ---- ----, hydrates of, 151, 153 ---- ----, hydrogen chloride and water, systems of, 290 Ferrite, modifications of, 224 Freedom, degree of, 14 Freezing mixtures, 120 ---- point, natural, 198 Fusion curve, 66 ---- ---- of ice, 25 ---- of ice, influence of pressure on, 26 ----, partial, 139 G Glaserite, 315, 317 Glasses, 176 Glauber's salt, 13, 134 ---- ----, transition curve of, 68, 140 Graphic representation in space, 77, 284 H Hydrates, range of existence of, 89 ---- chloride and water, 174 Hydrogen bromide and water, 174 Hylotropic substances, 198 I Ice I., 32 ---- II., 32 ---- III., 32 ----, equilibrium between water and, 25 ----, influence of pressure on melting point of, 25, 26 ----, sublimation curve of, 24 ----, vapour pressure of, 25, 31 Indifferent point, 150 Individual, chemical, 92 Inversion temperature, 36 Iodine and chlorine, 161 Iron--carbon alloys, 223 ----, carbon monoxide and carbon dioxide, 305 Isomerides, dynamic, 195, 196 ----, ----, equilibrium between, 195, 196 ----, ----, equilibrium point of, 198 ----, transformation of unstable into stable, 201 Isomerism, dynamic, 196 Isothermal evaporation, 278 ---- solubility curves, 272