484 
MESSRS. T. E. THORPE AND J. W. RODGER OH THE RELATIONS 
Chlorides. 
PT 02 ')yl Chloride. CHg.CHj.CHaCl. 
A quantity of the chloride obtained from Kahlbaum was dried by phosphoric 
oxide and distilled. It boiled between 46°‘l and 46°'3. Bar. 7.54‘4 milliins. Corrected 
and reduced b.p. 46°‘47. 
Vapour density : 
Found, 39‘56. Calculated, 39H8. 
Observations for viscosity :— 
Left limb. 
Right limb. 
Temp. 
Press. 
Corr. 
>1- 
Temp. 
Press. 
Corr. 
V- 
0 
0-43 
100-00 
-000057 
-004325 
0 
0-47 
99-95 
•000057 
•004330 
5-25 
99-95 
-000060 
-004103 
5-23 
99-85 
•000060 
•004106 
10-08 
99-80 
-000063 
-003893 
10-05 
99-73 
•000063 
•003896 
14-G8 
99-74 
-000065 
-003706 
14-63 
99-66 
•000065 
•003711 
20-74 
100-01 
-000069 
•003491 
20-68 
99-94 
-000069 
•003499 
25-80 
99-99 
-000071 
•003340 
25-73 
99-92 
•000071 
•003347 
.30-33 
99-95 
-000074 
•003178 
30-44 
99-86 
•000074 
■003177 
35-36 
99-90 
-000077 
•003040 
35-40 
99-84 
■000077 
•003037 
40-81 
99-89 
-000080 
•002882 
40-83 
99-81 
•000080 
■002892 
44-67 
99-89 
-000082 
•002786 
44-69 
99-79 
•000082 
•002783 
In reducing the observations the value d (0^/0°) = 0‘9123 for the relative density, 
and the expression : 
V = 1 + -0213306^ + •0538313^2 — -0713859^3 
for the thermal expansion (Zander, ‘ Annalen,’ 214, 157), were used. 
Taking 
= -004327 7^3 = *002784 772 (calculated) = *003471 
q = 0°-45 tg = 44°*68 ^2 (from curve) = 2l°-4B, 
we obtain 
GG2-52 
~ (203-3G + ' 
from which the following calculated values are obtained :— 
