Du Mez—TJie Galenical Oleoresins. 
1059 
tion in this connection. The results obtained in the determina¬ 
tion of this constant in the laboratory follow: 
Table 59 — Saponification values of oleoresins prepared in the laboratory. 
Sample 
No. 
Date 
Observer 
Solvent 
Saponifica¬ 
tion value 
1. 
1016 
DuMez... 
Alcohol. 
65.9 
63.7 
63.4 
67.0 
63.9 
57.9 
59.5 
105.9 (») 
2. 
Acetone. 
3..... 
Ether............._..... 
4. 
Petrol, ether.;... 
1. 
Alcohol. 
2.. 
Acetone .......... 
3.... 
Ether... 
1. 
Alcohol... 
1 This preparation contained a relatively small amount of volatile matter (principally 
essential oil). See page 1056 under “Loss in Weight on Drying”. 
Table 60 _ Saponification values of commercial oleoresins. 
Sample 
No. 
Date 
Observer 
Source 
Saponifica¬ 
tion value 
1. 
1916 
DuMez . 
Lilly & Co.. 
48.5 0) 
53.3 
49.3 0) 
55.0 
65.9 
2.. 
Parke, Davis & Co........ 
3.. 
Souibb & Sons............. 
4.. 
“ 
Sharp & Dohme. 
5.. 
Stearns & Co. 
0) Unevaporated solvent (alcohol) probably present. 
Iodine value: Further observations are necessary before a 
definite statement can be made as to what the iodine value of 
this preparation should be. Determinations made in the labora¬ 
tory appear to indicate that it is influenced largely by the 
volatile oil content as those preparations which lost the greatest 
amount on drying usually gave the highest values for this con¬ 
stant. Apparent exceptions to this rule are to be found in 
the samples obtained from Lilly & Company and Squibb & 
Sons, respectively. In these cases, unevaporated solvent 
(alcohol) is thought to have been present, although, it could 
not be detected by the odor. The following tables show the 
values obtained for the preparations examined in the laboratory. 
