Alum 333 ammonium 334 ammonium chrome 384 ammonium iron 352 baking powders 335 potassium 333 potassium chrome 384 potassium iron 352 Aluminates 332 Aluminium 327 bronze 330, 359 chloride 333 family 327 hydroxide 332 metallurgy 328 occurrence 327 oxide 331 preparation 328 properties 329 silicates 335 uses 330 Amalgam 362 Amethyst 260, 331 Ammonia 123 composition 127 preparation 123 properties 124 uses 125 Ammonium 126 acid carbonate 295 carbonate 295 chloride 294 compounds 294 Ammonium hydrosulphide 296 hydroxide 126 molybdate 388 oxalate 407 sulphate 295 sulphide 295 sulphide, yellow 296 Analysis 40 Anhydride 135 carbonic 206 chromic 387 nitric 135 nitrous 135 phosphoric 243 sulphuric 153 Anhydrite 288 Aniline 417 Anion 106 Anode 99 Anthracene 418 Antimony 250 acids 251 alloys 253 chloride 252 metallic properties 252 occurrence 251 oxides 251 preparation 251 properties 251 sulphides 251 Apatite 175, 239, 311 Aqua ammonia 124 Aqua regia 185 Aqueous tension 25 Argon 80 Arsenic 246 acids 250 antidote 250 Marsh's test 248 occurrence 246 oxides 249 preparation 246 properties 247 sulphides 250 white 249 Arsenopyrites 246 Arsine 247 Asbestos 321, 336 Atmosphere 83 constituents 83 function of constituents 84 Atomic hypothesis 61 theory 59 and laws of matter 63 and radium 314 weights, 65 accurate determination 231 and general properties 167 and specific heats 233 calculation of 231 Dalton's method 223 direct determination 233 from molecular weights 230 relation to equivalent 224 standard for 66 steps in determining 224 Atoms 62 size 65 Atropine 419 Aurates 396 Avogadro's hypothesis 226 and chemical calculations 235 and molecular weights 227 Azote 78 Azurite 357 Babbitt metal 253 Bacteria 85 decomposition of organic matter by 122 nitrifying 85 Baking powders 285, 408 alum 335 soda 285 Barium 312 chloride 313 nitrate 313 oxides 312 sulphate 313 Barytes 312 Bases 107 characteristics 107 definition 108 familiar 107 nomenclature 113 organic 412 strength 113 undissociated 108 Basic lining process 346 Bauxite 332 Beer 404 Benzene 417 derivatives 417 series 399 Benzine 400 Bessemer process 345 Bismuth 253 basic salts 255 chloride 253 nitrate 253 occurrence 253 oxides 254 preparation 253 salts, hydrolysis of 254 subnitrate 256 uses 253 Bismuthyl chloride 256 Blast furnace 341 lamp 38 Bleaching powder 306 Bleaching by chlorine 181 by sulphurous acid 152 Boiler scale 320 Bone ash 311 Bone black 200 Borax 265 bead 266 Bornite 357 Boron 257, 264 acids 265 fluoride 264 hydride 264 occurrence 264 oxides 264 preparation 264 properties 264 Brass 323 Bread making 416 Bromides 190 Bromine 187 occurrence 187 oxygen compounds 190 preparation 187 properties 188