Silicates, properties, 189

Silicic acid, detection, 191
properties, 189
reactions, 189
Silicofluorides, properties, 176
Silver, properties, 127
reactions, 128

separation from lead and mercury sub-

oxide, 131

Silver acetate, properties, 218
Silver arsenate, properties, 162
Silver arsenite, properties, 155
Silver borate, properties, 181
Silver bromide, properties, 193
Silver chloride, properties, 128
Silver chromate, properties, 172
Silver citrate, properties, 212
Silver cyanide, properties, 198
Silver ferricyanide, properties, 200
Silver ferrocyanide, properties, 199
Silver formate, properties, 219
Silver hyposulphite, properties, 174
Silver iodate, properties, 174
Silver iodide, properties, 195
Silver malate, properties, 213

Silver nitrate, preparation of solution, 68

-

tests of purity, 68

uses, 68

-on acetates, 218

-

on antimony teroxide, 151

on arsenates, 162

on arsenites, 155

on borates, 181
on bromides, 193
on chlorides, 192

on chloride lime, 205

on chlorites, 205
on chromates, 172

on citrates, 212

on cyanides, 198
on ferricyanides, 200
on ferrocyanides, 199
on formates, 219
on hypophosphites, 205

on hyposulphites, 174
on iodates, 174
on iodides, 195

on malates, 213

on metaphosphates, 180

on nitrites, 204

on oxalates, 182

on perchlorates, 209

on phosphates, 178
on phosphites, 187

on pyrophosphates, 180

on sulphides, 201

on tarirates, 210, 211

on tungstates, 168

on vanadates, 126

Silver oxalate, properties, 182

Silver oxide, properties, 128
Silver phosphate, properties, 178

Silver pyrophosphate, properties, 180
Silver salts, properties, 128

Silver sulphide, properties, 128

Soda carbonate, preparation of solution, 57
purification, 57

tests of purity, 58
uses as reagent, 58
uses as flux, 76

on alumina salts, 100
on antimony salts, 150
on baryta salts, 90
on berylla salts, 103
on bismuth salts, 136
on cadmium salts, 138
on cerium salts, 106
on chromium salts, 101
on copper salts, 134
on didymium salts, 107
on indium salts, 126
on lead salts, 130
on lime salts, 93
on magnesia salts, 95

on strontia salts, 91

on tellurous acid, 168

on thallium protoxide salts, 125

on thoria salts, 103

on tin binoxide salts, 148

on tin protoxide salts, 146

on yttria salts, 105

on zinc salts, 112

on zirconia salts, 104

fusion with mercury salts, 129
fusion with niobic acid, 110

-

109

see Potassa and soda carbonate

Soda carbonate bead, with didymium salts,

107

with iridium salts, 166

with manganese salts, 114
with palladium salts, 140

with rhodium salts, 140

with silicates, 190

85

Sodium sulphide, preparation, 55
preparation of yellow, 55

uses as reagent, 55

Soils analysis, 300

Solubility table, 380

Solution, 3, 233

Solvents, chemical, 3
simple, 3

76

for arsenic, 161
for bismuth, 137
for cadmium, 138
for copper, 135
for lead, 131

for silver, 128

for sulphates, 175

for tungsten, 168

for zinc, 113

on zirconia salts, 104

as blowpipe test for cyanogen, 198

Soda nitrate, preparation, 75

tests of purity, 75

uses as dry reagent, 75

and soda carbonate as test for chromium,
102

Soda phosphate, preparation of solution, 56
purification, 56

-

tests of purity, 56

uses as reagent, 56
on alumina salts, 100

on baryta salts, 90

-on indium salts, 126

-on lime salts, 93

-on lithia salts, 88
-on magnesia salts, 96

on strontia salts, 91

- on titanic acid, 108

ammonium chloride and ammonia on
magnesia salts, 96

Soda and potassa carbonate, see Potassa
and soda carbonate.

Soda salts, properties, 84

Soda sulphate on lime salts, 93

on tin binoxide salts, 148

Soda sulphite on osmic acid, 141
on tellurous acid, 168

Soda tantalate, properties, 110
Sodium on phosphates, 180

Sodium nitroprusside on sulphides, 201

KIRCHHOFF and BUNSEN'S, 28

- REXROTH'S, 29

Spectrum of baryta salts, 91

of borates, 182

of cæsia salts, 88
of copper bromide, 204
of copper chloride, 204
of copper iodide, 204
of didymium salts, 107
of erbium salts, 105
of indium salts, 126
of lime salts, 94
of lithia salts, 88
of potassa salts, 83
of rubidia salts, 88
of soda salts, 84
of strontia salts, 93

of thallium salts, 125

absorption, of didymium salts, 107
absorption, of erbium salts, 105
Spirit lamps, 19

-

Starch on bromine, 194

339, 340

distribution, 108

properties, 108

reactions, 107

tests of purity, 53

uses as reagent, 53

on antimony salts, 151

on arsenic compounds, 156
on chromates, 172
on copper salts, 135
on hypophosphites, 205
- on hyposulphites, 174
on indium salts, 126
on iridium salts, 166
on molybdates, 167
on niobic acid, 110
on nitrates, 207
on osmic acid, 141
on phosphorous acid, 187
on rhodium salts, 140
on ruthenium salts, 142
on sulphites, 173
on tantalic acid, 109
on tellurous acid, 168

on thallium protoxide salts, 125

on tin salts, 147, 148

on titanic acid, 108

on tungstates, 168

on vanadic acid, 126

Zine and platinum on antimony salts, 150
Zinc, basic carbonate, properties, 112

Zinc ferricyanide, properties, 113
Zinc ferrocyanide, properties, 112
Zinc oxide, properties, 111

Zinc salts, properties, 111

Zinc sulphate and sodium nitroprusside on
sulphites, 173

Zinc sulphide, properties, 112