CHINOLINE AND ITS HOMOLOGUES. 



385 



I obtained, however, an accurate result by precipitating with sulphuretted hydro- 

 gen, and collecting the sulphide of cadmium on a weighed filter. 



7*911 grains of cadmium salt, dried at 212°, gave 



8-976 

 1-765 



8-875 



10-053 



2-060 



10-534 

 •42295 



6-997 

 2-885 



carbonic acid, and 

 water. 



cadmium salt, dried at 212°, gave 



carbonic acid, and 



water. 



cadmium salt, dried at 212°, treated by Peligot's process, gave 

 nitrogen. 



cadmium salt cbinoline, dried at 212°, gave 

 sulphide cadmium. 



II. 



III. 



IV 



Carbon, 



. 30-94 



30-89 







30-92 



30-99 



C 18 



108 



Hydrogen, 



2-48 



2-58 







2-53 



2-29 



H 8 



8 



Nitrogen, 







402 





4-02 



4-02 



N 



14 



Chlorine, 











• . . 



30-56 



CI, 



106-5 



Cadmium, 





... 





3207 



32-07 



32-14 



Cd 2 



112 



Mean. 



Calculation. 



100-00 348-5 



It is evident, therefore, that the formula for the salt dried at 212° is — 



C 18 H 7 N, HCl + 2CdCl. 



Several examples of salts of the same constitution occur in inorganic chemistry, 

 some of which have been examined by M. Von Hauer, who terms them chloro- 

 bicadmiates. The chinoline salt, if merely dried by exposure to the air, contains 

 two equivalents of water, for at 212° it loses 5*41 per cent. ; theory requires 4 - 91. 

 The excess arises from a little moisture adhering somewhat tenaciously to the 

 crystals. 



Hydrochlorate of Chinoline and Chloride of Uranyl. — If double carbonate of 

 uranium and ammonia, dissolved in hydrochloric acid, is added to a strong 

 solution of hydrochlorate of chinoline, the fluid rapidly becomes filled with short, 

 brilliant, yellow needles, and in a few minutes the whole fluid solidifies, so that 

 the vessel may be inverted without the contents escaping. From more dilute 

 solutions, prismatic crystals are deposited, sometimes of considerable size. The 

 salt is of a rich yellow colour, and is very soluble in water. It was quite free 

 from any trace of ammonia. The mother liquid was removed by washing with 

 alcohol. The quantity at my disposal was too small to allow of a complete exa- 

 mination of all its properties. 



I. 



II. 



6-760 grains of uranium salt of chinoline, dried at 212°, gave 

 7 '9 00 ... carbonic acid, and 

 1-686 ... water. 



5-135 

 4-352 



uranium salt, dried at 212°, gave 

 chloride of silver. 



VOL. XXI. PART III. 



5 M 



