136 
PROFESSOR KOPP ON THE SPECIFIC HEAT OF SOLID BODIES. 
Hydrated Chloride of Copper and Potassium , €uK 2 Cl 4 +2H 2 G. Air-dried crystals. 
Experiments with Naphtha A. Glass 3. Temperature of the Air 17°-0-17°-2. 
T. 
T'. 
t'. 
t: 
M. 
m. 
/• 
y- 
X. 
sp. H. 
O 
o 
o 
o 
grms. 
grms. 
grm. 
grm. 
51-4 
19-1 
18-80 
16-33 
26-95 
4-085 
1-86 
0-431 
0-453 
0-197 
50-4 
19-0 
18-66 
16-26 
26-94 
55 
55 
55 
55 
0-197 
50-0 
19-1 
18-77 
16-43 
26-955 
„ 
55 
55 
0-193 
49-2 
19-0 
18-68 
16-35 
26-95 
59 
1* *84* 
55 
55 
0-204 
Mean . . . 0-197 
Chloride of Tin and Potassium, Sn K 2 Cl 6 . Crystals dried at 105°- 
Experiments with Naphtha A. Glass 3. Temperature of the Air 16°-4-17°-3. 
T. 
T'. 
t'. 
t. 
M. 
m. /. 
y- 
x. sp. H. 
Q 
Q 
o - 
o 
grms. 
grms. grm. 
grm. 
50-1 
18-3 
17-97 
15-70 
26-96 
5-305 1-77 
0-431 
0-453 0-134 
51-1 
18-7 
18-42 
16-12 
26-93 
9 9 55 
55 
„ 0-131 
49-5 
18-7 
18-36 
1.6-19 
26-955 
55 55 
55 
„ 0T29 
49-1 
18-8 
18-52 
16-34 
26-965 
„ 1-76* 
55 
„ 0-137 
Mean . . . 0-133 
Chloride of Platinum and Potassium, Pt K 2 Cl 6 . Well-formed small'crystals. 
Experiments with Naphtha A. Glass 2. Temperature of the Air ll°-5-ll°-2. 
T. 
T\ 
t'. 
t. 
M. 
m. 
/• 
y- 
X. 
sp. H. 
O 
O 
o 
o 
grms. 
grms. 
grm. 
grm. 
44-3 
13-2 
12-91 
10-55 
26-93 
7-25 
1-55 
0-431 
0-487 
0-122 
46T 
13-4 
13-06 
10-67 
26-975 
55 
55 
„ 
55 
0-113 
47-9 
13-5 
13-18 
10-68 
26-975 
55 
55 
55 
0-111 
48-1 
13-5 
13-23 
10-76 
26-98 
1-535 
* 
55 
55 
0-107 
Mean . . . 0-113 
at least two equivalents of chloride of zinc. In the analyses (the potassium was not determined) there were— 
Found 24-0 per cent. Zinc, 49-3 and 49-6 Cl. 
Calculated .... 22-85 per cent. Zn, 49*75 per cent. Cl, and 27*40 K. 
“ The crystals were only pressed between paper, and hence were impregnated with some mother-liquor, which 
explains the excess of zinc found.” — E ngelbach. 
* After drying the stopper. 
