OX AMMONIACAL PLATINUM BASES. 91 



uble salts between silver and argentdiammine. It is at present scarcely possible to 

 determine wbich of these three suppositions is correct. 



Compounds of Argent-triammine R=Ag.i 3NH 3 



1. Chloride RCV) 



2. Chloride with Chloride of silver (?) RCl.^Cl 2 Ag> 2 ) 



3. Nitrate R . 2N0 3 3 ). 



Compounds of Argent-diammine R— Ag^öy^ 



1. Nitrate R . 2N0 3 4 ) 4. Sulphate R . S0 4 7 ) 



2. Chlorate R . 2C10 3 5 ) 5, Seleniate R . Se0 4 8 ) 



3. Brgmate R . 2Br0 3 6 ) G. Chromate R . Cr0 4 9 ) 



7. Hijposulphate R . 2 . S 2 4 + H, O 10 ) 



Compounds of the radicle Ag 3 . 2NH 3 =R 



1. Cyanide RCy 2 ") r _ 1 , . . , -^1 ™ rT „ 1B . 

 .t c 7 7 j. Txn o\ i2\ o. Lobalticyanide R >Cyi* . Co + hLO ) 



2. Sulphocyanate R(CyS) 2 ) ^ a^J 



3. Platocyanide R . Cy 4 . Pt 13 ) 6. Sulphate R . SO< 16 ) 



, rr • -, ! ? i J 1 1A 7. Cldoroplatinate R. Cl 4 . Pt Cl, + H 2 O") 



4. r erricyamde R Cv x , . Fe, ) x * 



I. Ammoniacal compounds of Cadmium. 



The ammoniacal compounds of Cadmium seem to belong to four different radi- 



cles viz: 



1. Cadmium-triamrnine Cdv ;xi] J 



2. Cadmium-diammine Cd{ 2NH 3 



3. Cadmium-monodiammine Cd{ NH a 



4. Cd 2NH 3 . 



NH 3 or cadmium- 



scmidiammine Cd\ ' or pcrhaps the compounds, which contain one at. cadmium and 

 two mol. ammonia, are double-salts between the salts of cadmium and cadmiuindi- 

 ammine. 



J ) Isambert, Zeitschr. i'. Ch. 4. p. 570. 1868. '-) Rose, Pogg. Ann. 20. p. 157. 1830. Isambert 1. c. 

 ;i ) Rose 1. c. p. 153. 4 ) Mitscherlich Pogg. Ann. 9. p. 413. 1827. Marigxac, Ann. des Mines. (5) T. 12. 

 p. 24. 1857. 5 ) Wächter J. f. Pr. Chem. 30. p. 331. 1843. 6 ) Rammelsberg, Pogg. Ann. 52. p. 95. 1841. 

 7 ) Mitscherlich 1. c. Kaxe Pogg. Ann. 44. p. 468. 1838. 8 ) Mitscherlich Pogg. Ann. 12. p. 143. 1828. 

 9 ) Mitcherlich 1. c. 10 ) Rammelsberg, Pogg. Ann. 58. p. 298. 1843. ll ) Weith, Zeitschr. f. Ch. 5. p. 380. 

 1869. 12 ) Weith, 1. c. 13 ) Knop & Schnedermann Journ. f. Pr. Ch. 37. p. 473. 1846. 14 ) Gintl Sitzungs- 

 ber. der K. Akad. der Wissensch. zu Wien Mat. Nat. Cl. 59. p. 554. 1869. 15 ) Zwenger, Ann. der Ch. u. 

 Pharm. 62. p. 177. 1847. 1G ) Rose Pogg. Ann. 20. p. 152. 1830. 1T ) Birnbaum, Zeitschr. f. Ch. 3. p. 520. 

 1867. 



