( 628 ) 
TABL, RE: MT 
N./, ethyl acetate + N./ NaOH + N./,, invert-sugar. 
First series. Second series, 
t Cn kC, t Cn kC, 
3 7.60 os 3 1.52 a 
6, 6:36 0.0650 k=3.39 6 6.32 0.0633 
9 5.48 644 9 5.42 645 k=3.36 
12 4.82 641 12 4.80 629 
17 4,01 625 
average 0.0644. average 0.0633 
C. Experiments with d-glucose. 
For these experiments I made use of a preparation sold by 
Merck as “Traubenzucker purissimum, wasserfrei’’. By polarisation 
and a water determination, the article, however, appeared to contain 
about 6 pCt. of water. 
A second preparation in beautiful crystals was kindly offered 
to me by Prof. RixperL of Helsingfors. Both specimens gave the 
same figures in the saponification experiments and were used side 
by side, 
TABL Hr INV, 
N.fso ethyl acetate + N./,, NaOH + N./; d-glucose 
First series, Second series. 
t Cn kC, t Ch kC, 
15 7.32 — 15 7.32 — 
30 6.07 0.0137 30 6.02 0.0143 
45 5.13 142 45 5.14 142 
60 4.41 146 k=0.79 60 4,41 146 k=0.79 
80 3.72 148 80 3.72 148 
110 3.05 147 110 3.05 147 
average 0.0144 average 0.0145 
TA B Ti A KML 
N./4) ethyl acetate + N./,, NaOH -++ N./,, d-glucose. 
First series. Second series. 
+ Cn kC, t Cn kC, 
10 — A0 — 10 7.04 == 
20 5.68 0.0239 20 5.68 0.0239 
80 4.70 JASRk See 30 4.70 248 
45 3.83 239 45 3.83 239 sk 1538 
60 3.20 240 60 aos 24.2 
75 2.80 233 75 2.70 247 
average 0.0240 average 0.0243 
we pr 
54 
