490 
MESSRS. T. E. THORPE AHD J. W. RODGER OH THE RELATIONS 
Ethylene Chloride. CHoCl.CHgCl. 
A specimen of this liquid was dried over phosphoric anliydride and distilled. It 
boiled between 83''’91 and 84°‘08. Bar. 761 ’0 millims. Corrected and reduced 
b.p. 83°-93. 
Vapour density : 
Found, I. 48*99 ; II. 49*29. Calculated, 49*37. 
Observations for viscosity :— 
Left limb. 
1 
Right limb. 
Temp. 
Pi-ess. 
Corr. 
'/• 
Temp. 
Press. 
Corr. 
'/• 
0 
0-3.3 
128-09 
•000042 
•011194 
0 
0-30 
127-96 
•000042 
•011229 
7-2-2 
128-13 
-000046 
•010020 
7-24 
127-97 
•000046 
•010022 
14-71 
128-13 
-000051 
•008959 
14-75 
127-99 
•000051 
•008964 
21-84 
128-26 
-000056 
•008126 
21-85 
128-13 
•000036 
•008132 
28-78 
1-28-21 
-000061 
•007408 
28-78 
128-11 
•000061 
•007426 
36-90 
128-21 
-000066 
•006684 
.36-87 
128-09 
•000066 
•006707 
43-88 
128-22 
-000071 
•006163 
43-90 
128-07 
•000071 
•006168 
.51-78 
1-28-14 
-000077 
•005670 
51-69 
128-07 
•000076 
•005666 
58-.52 
128-19 
-000082 
•005265 
58-55 
128-05 
•000082 
•005273 
65-56 
128-23 
-000087 
•004907 
65-51 
128-08 
•000087 
•004917 
72-98 
1-28-28 
-000092 
•004552 
72-93 
128-14 
•000092 
•004564 
81-06 
128-35 
-000098 
•004213 
81-09 
128-20 
•000099 
•004221 
In reducing the observations the value 1*28082 for the density at 0 °, and the 
expression 
V = 1 + *03115303^ + *00825693^2 + *089625^3 
(Thoepe, loc. cit.) for the thermal expansion, have been adopted. 
Taking 
= *011211 773 = *004217 % (calculated) = *006876 
q = 0°'31 ?3 = 81°*07 ^2 (from curve) = 34°*80, 
Ave obtain the formula 
24-256 
“■ (100-67 + ' 
which gives the following calculated values : 
