Chemistry and Physics. 217 
The iodide and iodo-nitrate of platino-diamine give with ammonia 
two compounds having respectively the formulas : 
I 
I 
2NH,.I 2NH,.NO, 
yeep ese: Pees =F Ms NH, .NH 
2NH,.1 2NH,.NO, 
I 
The first of these bodies gives with nitric acid a nitrous-iodo- 
NO, 
. iv . 
nitrate of platino-diamine, Pt ONE? ; Nets the second gives 
with nitric acid the iodo-nitrate of diplatino-diamine, 
I 
oNH,.NO, 
« | 9NH,. NO 
Pts) oNH,. NO,’ 
aNH,.NO, 
] 
This salt is decomposed by chlorhydric acid, and gives small 
octrahedrons having the formula, Pt ONE : a By double 
Cl 
decomposition it gives the salts: 
vi va 
Pt, .8SNH,.I,, Pty. SNH, . (SO,)olo, Pts . SNH; . (PO,H) ale, 
Pt,.8NH,.(©,0,)oI,, Pt.. SNH, . (N@5),(H9)., 
. 6N6,+4H,0, Pt,.8NH, . Cl,(@H),+H,9, 
Pt, .8NH, . (S@,),(OH), +2H,0, Pt, . SNH, . (PO,)2+2H,9, 
Pt, , 8NH . (€r,0,).(OH), and Ft, . 8NH, . (©,9,)a +2H,9. 
By the action of bromine on the basic nitrate 
Pt, .8NH,. (N®,),(H9),, 
Cleve obtained the bromo-nitrate Pt,.8NH, .(N;),Brz, from 
which by double decomposition the following salts \ ere iormed: 
. 8NH, .Cl,. Br,, Pt, . 8NH, . (SO ,)2Br.+2H,9, 
tg.8NH, . Br, .(€,HO,),.©o 4 : 
— Bulletin’ Mentscl de la US sue Chimigque de Paris, April, May 
and June, 1871, p. 181. a. 
5. tson has shown that in capil- 
lary attraction the product of the density of a saline solution and 
to 59 milli : ct of these numbers is 61°9. 4 
imeters; and the produ y 1-184, rises to 54°2 milli 
I 
1°133, 
meters; and the product is 61°7, differing but slightly from that 
with nitrate of Hehtn dak Sci. Paris, Jan. 8; L’ Institut, Jan. 10. 
