16 
Table IX. 
Effect of varying the amount of quinine on the constancy of the 'proportion of HCl in 
the alkaloidal residue. 
Temperature as in Table VIII; time, 3 hours. 
' M/.30 qui- 
nine taken. 
i 
N/10 VaOH 
required. 
i ! 
X 10 AgXOs 
required. 
1 
Ratio Be- 
tween cc. 
quinine sol. 
taken and cc. 
X/10 XaOH 
required. 
1 
1 cc. 
cc. 
cc. 
5 
1.98 
1.96 
2. 52 
10 
4. 02 
3. 98 
2. 49 
20 
8. 15 
7.96 
2. 45 
30 
11.98 
12.00 
2.50 
40 
16.10 
15. 94 
2.48 
1 50 
20. 17 
20. 10 
2.48 
Table X. 
Effect of the temperature of the icater hath {90-95 C.) on the stability of freshly -formed 
quinine acetate. 
Time re- 
mained on 
water hath 
after com- 
plete evap- 
oration of 
liquid. 
M,’50 qui- 
nine taken. 
X/10 
XaOH 
required. 
Amount of 
acetic acid 
found. 
1 
Minnies. 
cc. 
cc. 
Gram. ' 
30 
10 
2. 48 
0. 0149 i 
: 60 
10 
2. SO 
. 0138 
90 
10 
2. 48 
. 0149 
120 
10 
2. 00 
. 0120 ! 
150 
10 
2. 00 
. 0120 i 
180 
10 
2. 18 
. 0131 I 
210 
10 
2. 00 
. 0120 i 
240 
10 
1. 70 
.0102 
270 
10 
1. 90 
.0114 
300 
10 
2. 05 
.0123 
330 
10 
2. 07 
. 0124 
360 
] 
10 
1.75 
. 0105 
Amount of C2H4O2 theoretically required for C20H24X2O2. C2H402=0.0120 gm. 
STRYCHXINE. 
A M/50 stryclinine solution was prepared by dissolving 3.34 gm. 
of the pure anhydrous alkaloid in X/2 HCl (or X/2 acetic acid) and 
using the same acid to make up the total volume to 500 cc. The 
results obtained with these solutions are given in Tables XI, XII, 
and XIII. 
