Synthetic Inorganic Chemistry

250 OXY-ACIDS AND SALTS OF THE NON-METALS there the conditions were such that a salt of iodic acid was obtained rather than the ...

POTASSIUM PERCHLORATE 251 To obtain completely anhydrous iodine pentoxide, the product could be heated for some time in an oven ...

252 OXY-ACIDS AND SALTS OF THE NON-METALS Cover the crucible to prevent loss of particles of the salt by de- crepitation, and he ...

SODIUM THIOSULPHATE 253 going over into sulphate. If it is allowed to react with sulphur, the latter enters into the compound in ...

254 OXY-ACIDS AND SALTS OF THE NON-METALS into the solutions. After a short time a marked frothing occurs in the first flask, du ...

EXPERIMENTS 255 solution the following distinct stages in the process were noted: (a) The gas passed into the solution in distin ...

256 OXY-ACIDS AND SALTS OF THE NON-METALS (6) Stir 5 grams of bleaching powder with 5 cc. of water. It cannot be seen to dissolv ...

EXPERIMENTS 257 The hypochlorite solution contains OCF ions, and the fact that this solution does not bleach rapidly indicates t ...

258 OXY-ACIDS AND SALTS OF THE NON-METALS Bromic and Iodic Acids. To a globule of carbon di- sulphide in a test tube add a few ...

EXPERIMENTS 259 the anhydride of chloric acid, however, does not appear; it breaks down into the oxide C1O 2 , which is the dark ...

260 OXY-ACIDS AND SALTS OF THE NON-METALS The iodine is then reduced by more sulphurous acid to hydriodic acid, which is colorle ...

EXPERIMENTS 261 Oxidizing Action of Sulphur Dioxide and Sulphurous Acid, (a) Fill a 250-cc. wide-mouth bottle with sulphur diox ...

262 OXY-ACIDS AND SALTS OF THE NON-METALS This experiment should be compared with Experiments 6 (6), 8 (b), and 9, in which sulp ...

EXPERIMENTS 263 4Zn + 8HNO3 -»4Zn(NO 3 ) 2 + 8H HNO 3 + 8H -»• 3H 2 O + NH 3 NH 3 + HNO3 -> NH4NO3 4Zn + IOHNO3 -»4Zn(NO 3 ) ...

264 OXY-ACIDS AND SALTS OF THE NON-METALS agent. This is quite in accord with what we have already found in other cases, namely, ...

GENERAL QUESTIONS VIII 265 When an element forms a series of oxy-acids, what rule seems to hold connecting the valence with the ...

CHAPTER IX ELEMENTS OF GROUP IV OF THE PERIODIC SYSTEM This group stands in the middle of the Periodic Table of the elements, an ...

PRECIPITATED SILICA 267 the name of " water glass." Several grades of water glass of differ- ent ratios Na2O:SiO2 are sold, but ...

268 ELEMENTS OF GROUP IV and collect the silica on the suction filter, washing it well on the filter. Dry the product and put it ...

STANNOUS CHLORIDE 269 Apparatus: shredded asbestos suspended in water, suction filter and trap bottle. 8-inch porcelain dish, ir ...