200 Mr. Phillips on certain Combinations, of ' Platina. 



The compounds analysed by Mr. Kane are, 

 Sesqui-iodide of platina, composed of 



l£ atom of iodine (126 + 63) 189 or 66*3 



1 platina 96 33*7 



285 100- 

 Double iodide of platina and potassium, composed of 



Sesqui-iodide of platina 61*25 



Iodide of potassium 38*75 



* 100* 

 Iodo-platinate of ammonium, consisting of 

 5 atoms of sesqui-iodide of platina (285 x 5). . 1425 or 90*83 



1 atom of ioduret of ammonium 144 9*17 



1569 100- 

 The following are the results of M. Lassaigne's analyses ; 

 in stating which I have accommodated the atomic weights to 

 those above given. 



Prot-iodide of Platina. 



1 atom of iodine 126 or 56*76 



1 platina 96 43*24 



"222 100* 

 Bi-iodide of Platina. 



2 atoms of iodine 252 or 72*42 



1 atom of platina 96 27*58 



348 100* 

 Iodide of Platina and Potassium. 

 1 atom of bi-iodide of platina .... 348 or 67*71 



1 iodide of potassium .... 166 32*29 



514 100* 

 Hydriodate of Ammonia and Platina. 



2 atoms of bi-iodide of platina .... 696 or 82*86 

 1 atom of hydriodate of ammonia . . 144 17*14 



840 100* 

 Hydriodate of Bi-iodide of Platina. 

 1 atom of bi-iodide of platina .... 348 or 73*27 

 I hydriodic acid 127 26*73 



475 100* 

 In a future Number I shall give further extracts from M. 

 Lassaigne's paper ; at present I would only ask Mr. Kane to 



* This is according to Mr. Kane's analysis; but if the compound were 

 really what he states it to be, it would consist of 



Sesqui-iodide of platina 63*2 



Iodide of potassium 36-8 



100- 



