97 
Normal Bromides. 
Observed. Calculated. 
Difference. 
Ethyl 
C 2 H 5 Br 
39° 
39° 
Propyl 
C 3 H : Br 
71 
71 
... 32° 
Butyl 
C 4 H 9 Br 
... 100-4 
101 
... 30 
Pentyl 
C s H u Br 
... 128-7 
129 
... 28 
Hexyl 
C 6 H 13 Bv 
— 
155 
... 26 
Heptyl 
C 7 H 15 Br 
... — 
179 
... 24 
Octyl 
C 8 H 17 Br 
199 
201 
... 22 
Normal Chlorides. 
Observed. Calculated. 
Difference. 
Ethyl 
c 2 h 3 ci 
12-5° ... 
13° 
Propyl 
c 3 h 7 Cl 
46-4 
46 
33° 
Butyl 
c 4 h 9 Cl 
77-6 
77 
... 31 
Pentyl 
c 5 h u ci 
... 105-6 
106 
29 
Hexyl 
c,h 13 ci 
— 
133 
... 27 
Heptyl 
c 7 h 15 ci 
— 
158 
... 25 
Octyl 
c 8 h 17 ci 
180 
181 
23 
Normal Acetates. 
Observed Calculated 
Difference. 
Ethyl 
c 4 h 8 o 2 
74° 
74° 
Propyl 
C 5 h 10 o 2 
102 
101 
... 27 
Butyl 
C g H 4 A 
125-1 ... 
126 
... 25 
Pentyl 
c 7 h 14 o 2 
148-4 ... 
149 
... 23 
Hexyl 
c 8 h 16 o 2 
168-7 ... 
170 
... 21 
Heptyl 
C 9 h 18 0 2 
— 
189 
... 19 
Octyl 
CfodboOs 
207 
208 
... 19 
Whilst in 
these series the difference between the boilin 
points steadily diminishes, in the series of the normal alco- 
hols the difference appears to remain the same, beiDg about 
19 °. 
Normal Alcohols. 
Observed. Calculated. 
Ethyl C 2 H 6 0 
78-4° ... 
78 
Propyl C 3 H 8 O 
97 
97 
Butyl C 4 H 10 O 
... 116 
116 
Pentyl C 5 H 12 0 
... 137 
135 
Hexyl C 6 H u O 
... 156-6 ... 
154 
Heptyl C 7 H 16 0 
— 
173 
Octyl C 8 H 18 0 
192 
192 
