106 P. T. CL EVE, 



2. Cldoride RCl ') 



3. Chloride with mercuric cldoride 2RCl+HgCl 2 2 ) 



D. Compounds of Mercuruos-ammine R=Hg 2 2NH 3 



1. Chloride R . CL 8 ) 



2. Cldoride with mercurous cldoride RCLj + H^Clj l ) 



3. Bromide with mercurous bromide RBr a + Hg 2 Br 2 5 ) 



4. Nitrates a. (R . O, . HgJ . O, . 2N0 2 u ) 



b. (R 2 0)0 2 . 2N0 2 7 ) 



E. Compounds of Mercurous-amide 



Chloride Hgi™ 2 8 ) 



The amido- and nitrilo-compounds of mercury are in eomposition analogous to 

 the organie amido- or nitrilo-bases, but not in their chemical function, the nitrogen 

 in these mercuric compounds being three- and not five-atomic. As really analogous to 

 these compounds 1 consider the amido-compounds of zinc studied by Frankland, 9 ) viz: 



Zn (NIL' ZnÄ z n2(N-C 6 H 6 ), Zn2(N,C 2 H 5 ) 



Zn2(NH, C 2 H 3 0) and \ C 2 2 . 



Zn- 



jNHj 

 [C,H 5 



Also when nitrogen is united with strongly positive metallic radicles (an for 

 inst. in KH 2 N and K 3 N) it does not seem to be more than three-atomic, and these 

 compounds, answering in their eomposition to the organie bases, have not, like ammo- 

 nia, the property of uniting with acids. 



Ammonio-compounds of other metals than those previously mentioned are very 

 unstable, but still they exist. The chloride of lead may unite with ammonia to 

 3PbCL + 4NH 3 (Rose) 10 ). 



According to Rose n ) the chlorides of calcium and strontium unite with 8 raol. 



ammonia, thereby producing the tetrammine Cau NH 3 cl . The bromide of calcium ab- 

 sorbs 6 mol. ammonia according to Rammelsberg li: ) and the iodide of the same metal, 

 according to Isambert 13 ) can give with ammonia a compound containing also 6 mol. 

 ammonia. 



Isambert 13 ) found that the chloride of magnesium also obsorbs 6 mol. ammonia. 



') Veyl, 1. c. p. 546. 2 ) Mitscherlich, Jouni. f. Prakt. Ch. 19. p. 455. 1840. 3 ) Isambekt, Zeitschr. 

 f. Ch. 4. p. 571. 1868. 4 ) Rose, Pogg. Ann. 20. p. 158. 1830. 5 ) Rammelsberg, Pogg. Anu. 55. p. 248. 

 1842. 6 ) Mitscherlich, Pogg. Ann. 9. p. 399. 1827. 7 ) Kane, Ann. de Ch. et de Phys. 72. p. 257. 1839. 

 8 ) Kane, Pogg. Ann. 42. p. 380. 1837. Ullgren, 1. c. p. 309. 9 ) J. f. pr. Ch. 73. p. 35. 1858. 10 ) Rose, 

 Pogg. Ann. 20. p. 157. 1830. n ) Rose, 1. c. p. 154. 12 ) Rammelsberg, Pogg. Ann. 55. p. 2. 39. 1842. 

 1:1 ) Isambert, Zeitsohrift f. Ch. B. 4. p. 571. 1868. 



