C (Numbers refer to paragraphs.) Calcium use of, 16, 351, 363 from magnesium, separation of, 198 oxalate, ignition and decomposi- sulphate, conversion of calcium by oxalate method, 198-201 in calcium carbonate, as calcium in carbonate rocks, 206 Calculations, 7, 9, 10, 52, 53 involved in oxidation-reduction Calibrated volumetric apparatus, 96, 97 factors, calculation of, 11 Chlorate method for separation of Chlorides," determination in rock determination in presence of sodium in chlorides, determination of, 150, in water, solubility of, 423 Chlorplatinate method for potassium determination determination countered, 2 Cleaning glassware, 94 Cleanliness of volumetric apparatus, 94 Colloidal gels, formation and com- "Combined chlorides" determination "Combined oxides" determination in apparatus for carbon in steel, 363 of steel for carbon, procedure for, Common ion effect, 148, 162-165 formation, consideration of, 145, potential of, 247-249 of reagents, 25 expression of, 25, 123, 124, 126, 127 Conductivity water, 28 (Numbers refer to paragraphs.) for liquid measure, 428 for weights and measure, 427-432 by electro-deposition with alumi- Copper and lead determinations in methods of, 402 in an ore, electrolytic, 343-348 treatment of interfering elements Copper-manganese alloys, composi- Copper-nickel alloys, composition of, Co-precipitation, 151-155 factors influencing, 153, 156, 157, 159 various substances involved in, 151, 152, 183, 184, 189, 198, 208, 226, Counter e.m.f., relationship between Creeping, 39 Cresolphthalein, 121 Cresol Red, 121 Crucibles, 19, 46, 47, 81 use and care of platinum, 19, 47, 81 Cupferron, 228 to separate groups of elements, use Current densities for analytical purposes, density, effect of, 315, 331, 332 Cylinders, use of graduated, 96 Ꭰ Date, importance of, 7 Decomposition voltage, theoretical, Dehydrating agents, 16 Delivery time for volumetric appara- Density of water, table of, 99 of ions, differential, 322, 329 of metals for analytical purposes, of two different kinds of ions, sim- Deposition potential, 323, 329 Dibasic acids, titration of, 109 Dilution law, application of Ost- Dimethyl glyoxime, 226 229 (Numbers refer to paragraphs.) Electro-chemical reactions, discus- Electrode potential, evaluation of, 239 et seq. Electrodes, use of platinum, 340, 341, Electrode surface, influence of, 315, Electrolysis, stirring during, 339 theory of, 310-340 Electrolyte, resistance of, 321 deposition of ions, rate and order separation of various metals, 322, Electrolytic circuit, Electrolytic determination of lead in brass, 403, 404 components of resultant, 238 End point, 101 method of detecting, 176 consideration of, 50-55 Ether and absolute alcohol mixture, use saturated with hydrochloric acid, of sulphuric and hydrofluoric acids, Experimental data, recording of, 7 F Factors, calculations of chemical, 11 Factor values in gravimetric determinations, use in oxidimetric reactions, calcula- standardizing solutions to, 125, 126 Ferric chloride, isolation of, 231, 232 by iodide ion, reduction of, 245 to ferrous ion, various ways of re- Ferrous alloys, composition of, 389 Ferrous and non-ferrous alloys, analy- Ferrous ion by permanganate solu- Filter paper, 44 macerated, 45 reduction of precipitates due to Floats, use of, 95 Fluxes, classification of, 38 Ford-Williams' method for determina- Formic mixture, buffer action of, 213 composition of, 221 zinc determination in, 221 Fusible metals, composition of, 390 application and procedure, 38, 183, in rock analysis, decomposition by, kinds of, 38, 376 G Gahnite, zinc determination in, 221 H Heat-resisting alloys, composition of, Helianthin, 121 Homogeneity of samples, 34 Hydrofluoric acid, evaporation of, 40 cathodic overvoltage for, 317, 318 electrode, normal, 239 ion concentration, calculation of, ion concentration, determination ion concentration, expression of, ion concentration, regulation of, 161-165 ion concentration, rôle of, 159–161 in water, solubility of, 423 sulphide generators, 17 sulphide in water, solubility of, 423 I Igneous rocks, composition of, 371 Imperial liquid measure, units of, Impressed e.m.f. and counter e.m.f., calculations involved in, 179 Inflection, point of, 104 "Insoluble matter," in carbonate rock Iodide ion applications of the reducing poten- by ferric ion, oxidation of, 245 308 Iodimetric methods, 299-309 Iodine, applications of the oxidizing poten- Ionic product of water, 102 constants, table of, 167 of acids, table of percentages of, 425 carbon determination in, 358-368 determination in an iron ore, 280- determination, methods of, 270 et from other elements, separation of, in copper determination, effect and in iron ore, iron and steel; by ether, in limestones, removal of, 206 manganese determination in, 287 |