Du Mez—The Galenical Oleoresins. 
1035 
Table 41 - Acid numbers of oleoresins prepared in the laboratory. 
Sample 
No. 
Date 
Observer 
Solvent 
Acid 
number 
1 .. 
i916 
DuMez ... 
Alcohol... 
93.5 
Acetone. 
106.6 
a ........ 
F.ther. 
103.8 
4 . 
“ 
“ 
Petrol. Ether. 
105.0 
Table 42 —Acid numbers of commercial oleoresins. 
Sample 
No. 
Date 
Observer 
Source 
Acid 
number 
1 ........ 
ip 16 
DuMez .... 
Squibb & Sons. 
30.8 1 
60.3 
82.7 
2. 
Sharp & Dohme. 
3. 
44 
Lilly & Co. 
1 Contained ether. 
Saponification value: The saponification values obtained for 
the oleoresins prepared in the laboratory were above 200, as a. 
rule, regardless of the nature of the solvent used in extracting 
the drug. The comparatively slight variations observed were 
very likely due to the difference in the degree to which the 
solid fats (principally palmitin) had been removed. This also 
accounts for the comparatively low values obtained for the 
commercial preparations. The exceptionally low value ob¬ 
tained for the sample from Squibb and Sons is to be attributed 
to the presence of unevaporated solvent. The values obtained 
for the preparations examined in the laboratory are given in 
the tables which follow: 
Table 48 —Saponification values of oleoresins prepared in the laboratory. 
Sample 
No. 
Date 
Observer 
Solvent 
Saponifica¬ 
tion value 
1......... 
1916 
DuMez. 
Alcohol 
203.5 
209.2 
207.4 
208.6 
196.7 
202.8 
206.9 
198.7 
2. 
Acetone. 
3.. 
Ether.. 
4.. 
Petrol, ether .. 
5. 
Alcohol. 
% . 
Acetone. 
7. 
Ether... 
8. 
Benzin. 
