BETWEEN THE VISCOSITY OP LIQUIDS AND THEIR CHEMICAL NATURE. 495 
Mean temp. 
V- 
Difference. 
Observed (mean). 
Calculated. 
o 
0-60 
-013.3-22 
-013.322 
-oooooo 
7T5 
-011884 
-011893 
+ *000009 
14 89 
-010476 
-010496 
+ -000020 
21-21 
-009517 
-009538 
+ -000021 
27-56 
-008705 
-008708 
+ -00000.3 i 
.35-21 
-007855 
-007851 
- -000004 ^ 
42-08 
-007198 
■007190 
- -000008 
49-51 
-006567 
-006569 
+ -000002 
56-29 
-006078 
-006073 
- -000005 
62-87 
-005659 
-005646 
- -00001.3 
69-89 
-005246 
-005241 
- -000005 i 
74-16 
-005017 
-00.5017 
■oooooo ; 
Carbon Dichloride. CCLiCClg. 
A large quantity of this liquid was distilled, washed witli water and a dilute 
solution of potassium carbonate, dried over phosphoric anhydride and carefully 
fractionated. Eventually, after repeated fractionation, a portion was obtained which 
boiled between 120°-73 and i20°-S5. Bar. 7b I'15 niillims. Corrected and reduced 
b.p. = 120°-74. 
Vapour density : 
Found, 82‘21. Calculated, 82*74. 
Observations for viscosity :— 
Left limb. 
Rig 
lit limb. 
Temp. 
Press. 
Con*. 
'/■ 
Temp. 
Press. 
Corr. 
V- 
o 
0-41 
130-62 
■000054 
■011331 
o 
0-46 
130-46 
■000054 
■011329 
11-44 
1.30-60 
■000061 
■009854 
11-41 
130-43 
■000061 
■009870 
22-.30 
130-56 
■000069 
■008683 
22-.30 
130-42 
■000069 
■008700 
32-.39 
130-46 
■000075 
■007821 
32-28 
130-34 
■000075 
■007858 
42-76 
130-41 
■000082 
■007068 
42-80 
1.30-25 
■000082 
■007074 
52-68 
1.30-37 
■000089 
■006448 
52-69 
130-21 
■000089 
■006456 
64-16 
1.30-68 
■000097 
■005839 
64-13 
130-55 
■000097 
■005852 
74-69 
130-61 
■000104 
•005349 
74-66 
130-47 
■000104 
■005363 
85-71 
1.30-64 
■000112 
■004914 
85-80 
130-47 
■000112 
■004908 
95-59 
130-62 
■000119 
■004549 
95-62 
130-46 
■000119 
■004554 
106-04 
130-50 
■000126 
■004218 
106-03 
130-32 
■000126 
■004224 
117-06 
130-46 
■0001.34 
•003902 
117-13 
130-.33 
■000134 
■003900 
