_See Boron_
Borax, examination of, 431
Boron, 429
direct determination of, 431
Brass, copper in, 194
zinc in, 265
Bromine and bromides, 361
Bronze, copper in, 194
tin in, 281
Burettes, 51
Burnt ore, silver in, 116, 118
sulphur in, 377
Cadmium, 269
gravimetric determination, 269
separation of, 269
Caesium, 339
Calcination, 22, 92, 139, 345
Calcium, 320
detection of, 321
gravimetric determination, 321
separation of, 321
titration with normal acid, 322
titration with permanganate, 322
Calculation of results, 7
Calculations from formul?, 70
Calorific effect of coal, 419
Calorimeter, 419
Calx, 345
Carbon, 414
gravimetric determination, 416
in iron or steel, 423
Carbonates, 424
Carbonic acid in the air of mines, 428
Caustic potash = potassium hydroxide, 65
Caustic soda = sodium hydroxide, 66
Cerium, 318
Chalybite, iron in, 243
Charcoal, 21, 94
Check assays for gold, 154
for silver, 104, 113
Chlorine and chlorides, 359
Chromium, 307
gravimetric assay, 309
in chrome iron ore, 308
volumetric assay, 309
Clays, examination of, 316
Coals, 418
Cobalt, 259
detection of, 259
dry assay for, 251
gravimetric determination, 260
in hardhead, 288
separation from nickel, 442, 254, 258
Coke, 25
Common salt, examination of, 336
Concentrates, assay for gold of, 140
Colorimetric assays, 44
Copper, 175
Copper, bismuth in, 208
colorimetric assay for, 190, 203
commercial, arsenic in, 208, 388
commercial, copper in, 193
commercial, examination of, 205
cyanide assay for, 194
dry assay of, 176
dry assay, loss of, in, 176
electrolytic assay for, 190, 203
gold in, 206
iodide assay for, 199
iron in, 209, 249
lead in, 206
separation of, 183
silver in, 205
sulphur in, 207
Copper ores, solution of, 183
valuation of, 181
Copper pyrites, copper in, 179, 188, 198, 202
sulphur in, 376
Culm, 22
Cupel, 23, 142
Cupellation, loss, corrections for, 103
loss in gold, 145
loss in silver, 101
of gold lead alloys, 182
of silver lead alloys, 98, 110
temperature of, 143
Cyanicides, 169
Cyanide assay for copper, 194
for nickel, 255
for tin, 278
Cyanides, alkalinity of, 167
assay of, 167
commercial, 160
double, 161
gold-dissolving power, 162
prussic acid, 162
volumetric determination of, 163, 165
Cyanide liquors, alkalinity of, 167
assay of, 164, 165
assay of, for gold, 140
assay of, for zinc, &c.
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