INDEX. 257PAGE
Polysulphides 106
Potassium bromate 121
bromide 121
chlorate 117
eobalticyanide 146
cobaltinitrite 150
cobaltothiocyanate 147
columbium oxyfluoride 223
cyanate 113
didymium sulphate 242
ferric oxalate 153
ferric sulphide 139
iodate from potassium chlorate 120
iodide 74
iodine tetrachloride Ill
lanthanum sulphate 242, 245
lead iodide 144
mercuriiodide 145
mercurinitrite 149
nitrate from sodium nitrate 122
perchlorate 118
permanganate 124-126
persulphate, electrolytically 133
tantalum heptafluoride 223
tribromide 108, 109
triiodide 110
trithiocarbonate solution 137
Potential series 67
Praseo salts 179, 182
Precipitating colloids 47
Precipitation process 25
Protective colloids 42, 47
Protons 9
Prussic acid residues 92
Pseudo solutions 39
Pulverizing 8
Pure compounds 45, 46
Purple of Cassius 19, 35, 42
Pyrometer 86
Pyrosulphuric acid dichloride 202
Quantum theory 11
Radioactive constituents of pitchblende 231-233
Radioactivity 231, 233
detection of 233