480  Alcohol  in  Titration  of  Alkaloids.     { Member 
A.  Table  Showing  the  Number  of  c.c.  t^  KOH  Solution  Necessary 
to  Produce  a  Neutral  or  Faintly  Alkaline  Reaction  with 
Different  Indicators  when  io  c.c.  ~  H2S04  are  Titrated  in 
the  Presence  of  60  c.c.  of  Distieeed  Water,  Aecohoe,  and  Mix- 
tures of  Aecohoe  and  Water. 
Indicator. 
uistiiied. 
Water. 
Alcohol, 
1  Volume. 
Distilled 
Water, 
2  Volumes. 
Alcohol, 
1  Volume. 
Distilled 
Water, 
1  Volume. 
Alcohol, 
2  Volumes. 
Distilled 
Water, 
1  Volume. 
Alcohol, 
94-5  Per 
Cent. 
Phenolphtalein  .  .  . 
100*16 
104-39 

106-72 
106-76 
109*24 
Hematoxylin     .  .  . 
98-17 
100-54 
100  83 
ioi'53 
103-15 
Tropaeolin  00    .  .  . 
98-42 
96'93 
96*11 
94-70 
74-651 
98-52 
101'20 
101-79 
102*96 
104-07 
Brazil  wood  
98-57 
I02-09 
103-10 
104-28 
106-28 
99-06 
100-44 
101-13 
101-50 
10271 
98  66 
102-69 
103-40 
104-93 
106-32 
1  Color  very  difficult  to  distinguish. 
B.  Tabee  Showing  the  Equivalent  of  i  c.c.  t™q  KOH  in  Decinormae 
Sulphuric  Acid  when  Titrated  with  Different  Indicators  in 
the  Presence  of  Distilled  Water,  Alcohol,  and  Mixtures  of 
Alcohol  and  Water. 
Indicator. 
Distilled 
Water. 
Alcohol, 
1  Volume. 
Distilled 
Water, 
2  Volumes. 
Alcohol, 
1  Volume. 
Distilled 
Water, 
1  Volume. 
Alcohol, 
2  Volumes. 
Distilled 
Water, 
1  Volume. 
Alcohol, 
94*5  Per 
Cent. 
C.c. 
C.c. 
C.c. 
C.c. 
C.c. 
Phenolphtalein  .  .  . 
0*09984 
0-09579 
0*09414 
0-09367 
0*09154 
Haematoxylin     .  .  . 
0-10186 
0*09946 
0*09917 
0*09849 
0*09694 
Tropaeolin  00    .  .  . 
0-10160 
0-10316 
0*10405 
0-10559 
,0*13396 
0-10150 
0*09881 
0*09824 
0*09712 
0*09609 
0-10144 
0-09795 
0*09699 
0*09589 
0*09409 
0-10094 
0-09956 
0*09887 
0*09842 
0-09736 
0*10135 
0-09738 
0*09671 
0*09530 
0-09405 
