BETWEEN THE VISCOSITY OF LIQUIDS AND THEIR CHEMICAL NATURE. 75 
Methyl Acetate. CH3.COOCH3. 
The sample boiled constantly at 57°‘59. Bar., 773’6 millims. Corrected and 
reduced b.p. = 57°’09 (57°’l, Y. and T.). 
The following are the observations for viscosity :— 
Left limb. 
Rig'bt limb. 
Temp. 
Press. 
Corr. 
V- 
Temp. 
Press. 
Corr. 
j 
0-34 
101-53 
•000057 
•004761 
! 0-34 
101-42 
•000057 
•004763 
6-28 
101-50 
-000061 
•004436 
6-34 
101-41 
•000061 
•004436 
11-42 
101-46 
-000064 
•004186 
11-40 
101-37 
•000064 
•004186 
16-72 
101-62 
-000068 
•003947 
16-69 
101-52 
•000067 
•003949 - 
22-77 
101-35 
-000071 
•003705 
22-72 
101-27 
•000071 
•003707 
28-38 
101-68 
-000075 
•003491 
28-37 
101-58 
•000075 
•003492 
33-85 
101-67 
-000078 
•003303 ' 
33-86 
101-57 
•000078 
•003305 
40-45 
101-67 
-000082 
•003099 
40-45 
101-58 
•000082 
•003101 
46-10 
101-84 
•000086 
•002941 1 
46-03 
101-74 
•000086 
-002944 
50-33 
101-86 
•000089 
•002829 
50-35 
101-73 
•000089 
•002828 
54-37 
101-84 
•000091 
•002723 
54-29 
101-73 
•000091 
•002731 
' 
The value cl (0°/4°) = 0’95932, and the expression 
V = 1 + -03134982 t + 'Oo87098 + -0.3^562 t\ 
have been used in the reduction of the observations. 
Taking 
— -004762 'ng = -002727 773 (calculated) = -003604, 
t-^ — 0°-34 to — 54°-33 4 (from curve) = 25'^-32, 
we obtain the formula 
_ 57-4012 
~ (154-499 + ’ 
which gives results almost identical with those observed. 
Ethyl Acetate. CHg.COOCHg.CHg. 
The boiling-point was constant at 77°'25. Bar. 761*8 millims. Corrected and 
reduced b.p. = 77°-18 (77°-15, Y. and T.). 
The results of the viscosity observations are as follows :—■ 
L 2 
