486 
MESSRS. T. E. THORPE AND J. W. RODGER ON THE RELATIONS 
we obtain 
9-2541 
~ (133-60 + ’ 
which gives an extremely good agreement with the observed values :— 
Mean temp. 
V- 
Difference. 
Observed (mean). 
Calculated. 
o 
0-27 
-004000 
-004000 
•000000 
0-68 
-003714 
-003714 
■000000 
11-02 
-003540 
•003.540 
•000000 
16-47 
-003341 
•003338 
- -000003 
22-50 
-003137 
•003137 
•000000 
28-22 
-002962 
•002963 
+ -000001 
33-02 
-002829 
•002829 
•000000 
Isohutyl Chloride. (CH3)3CH.CH3C1. 
.\ sample from Kahlbaum, after standing over phosphoric oxide for several days, 
was distilled, and the fraction boiling between 68°'33 and 69°‘03 was used for the 
experiments. Bar. 750’7 millims. Corrected and reduced b.p. = 69°'02. 
Vapour density : 
Found, I. 47-07; II. 46-90. Calculated, 46-20. 
Observations for viscosity :— 
Left limb. 
Right limb. 
Temp. 
Press. 
O 
o 
V- 
Temp. 
Press. 
Corr. 
'/• 
o 
0-35 
100-70 
•000043 
•005814 
o 
0-36 
100-91 
•000043 
-005817 
5-96 
100-59 
•000045 
•005397 
5-98 
100-69 
•000045 
•005404 
11-93 
101-40 
•000049 
•005016 
11-98 
101-45 
•000049 
•005014 
18-70 
99-54 
•000051 
•004638 
18-69 
99-60 
•000051 
•004636 
23-41 
98-68 
•000053 
•004386 
23-55 
98-75 
•000053 
•004386 
29-47 
100-88 
.-000058 
•004104 
29-46 
100-95 
•000058 
•004101 
37-33 
100-17 
•000062 
•003766 
37-32 
100-32 
•000062 
•003770 
42-43 
100-94 
•000065 
•003576 
42-44 
101-08 
•000065 
•003575 
48-70 
100-06 
•000068 
•003357 
48-73 
100-14 
•000068 
•003361 
,53-77 
99-30 
•000070 
•003194 
53-72 
99-39 
•000070 
•003200 
60-40 
101-00 
•000075 
•003002 
60-13 
98-76 
•000075 
•003012 
65-34 
101-28 
-000078 
•002882 
6.5-27 
101-22 
•000078 
•002873 
