512 
DE. A. W. HOE^HANX OX THE PHOSPHOErii-BASES. 
Flatinum-salt . — The crude product of the reaction, purified with oxide of silver and 
saturated with hydrochloric acid, furnishes, on addition of dichloiide of platinum, an 
orange-yellow platinum-compound, crystallizing in needles ver}' similar to those of the 
methyl-compound above-described. The salt, reciystallized from boiling water, gave on 
analysis the following numbers : — 
I. 0‘7544grm. of platinum-salt gave 0-5565 grm. of carbonic acid and 0-3023 grm. of 
water. 
II. 0-6056 grm. of platinum-salt, when treated r\ith sulphuretted hydrogen, &:c., gave 
0-1964 grm. of platinum. 
The formula 
CioH^ePNPt^Clg 
PI" 
(C,H5)H2N_ 
CT„ 2 Pt ax 
requires 
Tlieory. 
A 
Experiment. 
A 
( 
" " ^ 
( \ 
I. II. 
^10 
120 
19-96 
20-12 
26 
4-32 
4-45 
P 
31 
5-15 
N 
14 
2-33 
Pt„ 
197-4 
32-82 
32-43 
213 
35-42 
601-4 
100-00 
Q. Sella has determined the crystalline form of this beautiful salt. 
“ System monoclinic : — 
10 0, 101 = 43° 35'; 1 0 1, 0 0 1 = 43° 17' ; 1 1 1, 0 1 0 = 55° 36'. 
Forms observed: — 
10 0, 
0 01, 
110, 0 
1 1 (Fig. 
69). 
Angles. 
Calculated. 
Obser 
ved. 
10 0, 
001 
0 
= 86 
52 
O 
86 
52 
10 0, 
110 
= 44 
55 
45 
8 
10 0, 
oil 
= 87 
47 
87 
38 
0 01, 
110 
87 
47 
87 
53 
0 01, 
oil 
= 44 
46 
44 
47 
110, 
Tio 
90 
10 
90 
10 
110, 
oil 
= 58 
21 
58 
5 
110, 
oil 
= 61 
59 
62 
11 
oil, 
oiT 
= 90 
29 
90 
29 
Fig. 69. 
eef 
