ON AMMONIACAL PLATINUM BASES. 97 



described by Dufour 1 ) and by Hileenkamp *), the cobalticyanide Co 2 Cy 12 Cu 3 + 4NH 3 

 + 5H 2 3 ) the hydrate 3CuO, 4NH 3 + 6H 2 4 ) the chromate 3CuO, 7Cr0 3 + 10NH 3 + H,O 5 ) 

 and the phosphates 3(2CuO, P,0 5 ) + 2(Cu O . 4NH 3 )+ 8FLO 6 ) and 



cSh 4 ) 7 !°o + 3NH 3 + ^ 07 ) 



N. Ammoniacal compounds of Cobalt. 



Cobalt gives many radicles with ammonia, which contain diatomic and tetra- 

 atomic cobalt as well as liexatomic dicobalt. They are partly diammines, partly tri- 

 ammines and partly di-triammines. 



I. Bases of diatomic cobalt: 



A. Cobalt-triammine R = CoL™ 3 



1. Chloride RC1 2 + H 2 8 ) 



2. Bromide RBr,, 9 ) 



3. lodide RI 2 10 ) 



4. Nitrate R . 2N0 3 + 2H 2 O u ) 



5. Sulphate R.SO, 12 ) 



B. Cobalt diammine R . ^CoL^tt 3 



1. Chloride RC1, J3 ) 



2. lodide RL 11 ) 



II. Bases of tetratomic cobalt. 



1V |2NH 

 Oxycobaltdi-triammine, Oxye obalt R=0"Co{ OXTrT 



1. Nitrate R . 2N0 3 + H 2 15 ) 



2. Sulphate 2R . S0 4 + 3H 2 O 1G ) 



') Compt. Rend, 36. p. 1099. 1853. -) Ann. Ch. n. Pharm. 97. p. 218. 1856. 3 ) Zwenger, Ann. Cb. 

 Pharm. G2. p. 171. 1847. 4 ) Kane, Pogg. Ann. 44. p. 468. 1838. ■"') Malaguti & Sarzeau, Berz. Årsber. 

 1844. p. 132. 6 ) Schwarzenberg, Ann. Ch. u. Pharm. 65. p. 157. 1848. ') Metzner, Ann. Ch. u. Pharm. 

 149. p . G6. 1869. 8 ) Frémy, Ann. de Chem. et de Phys. [3] 35. p. 268. 1852. 9 ) Rammelsberg, Pogg. Ann. 

 55. p. 245. 1842. 10 ) Rammelsberg, Pogg. Ann. 48. p. 1-58. 1839. n ) Frémy, 1. c. p. 265. 12 ) Rose, Pogg. 

 Ann. 20. p. 152. 1830. 1:! ) Rose, 1. c. p. 156. l4 ) Rammelsberg. 1. c. p. 155. 15 ) Frémy, 1. c. p. 271. 

 Schiff, Ann. Ch. u. Pharra. 123. p. 1. 1862. 16 ) Frémy, 1. c. p. 277. 



K. Vet. Akad. Handl. Band. 10. N:o i>. 13 



