ETHYL ALCOHOL FROM WOOD WASTE. 
49 
Series Ilia. 
TIME VARIABLE. 
1.4 per cent of ILSO4; 125 per cent of H 2 0; 7.5 atmospheres. 
Cook No. 
Time of 
cook 
(minutes). 
Yield of volatile acid (percent of dry 
weight of wood). 
Acetic. 
Formic. 
Both. 
33 


10 
10 
30 
1.457 
1. 560 ■ 
2.39 
1.416 
1.55 
0.355 
.470 
.059 
.430 
.570 
1.812 
40 . . 
2.030 
24 
2.449 
41 . . 
1.846 
42 
2.120 
Preliminary Series III. 
TIME VARIABLE. 
1.80 per cent of H;S0 4 ; 400 per cent of H 2 0; 7.5 atmospheres. 
Cook No. 
Time of 
cook 
(minutes). 
Yield of volatile acid (per cent of dry 
weight of wood). 
Acetic. 
Formic. 
Both. 
15 


15 
30 
1.22 
1.62 
1.32 
1.48 
0.185 
.220 
.598 
.570 
1.405 
16 
1.840 
18 
1.918 
17 
2.050 
Series IV. 
WATER TO WOOD RATIO. 
1.80 to 1.83 per cent of ILSO4; 7.5 atmospheres; minute. 
Cook No. 
Per cent of 
water. 
Yield of volatile acid (per cent of dry 
weight of wood). 
Acetic. 
Formic. 
Both. 
26 
400 
300 
250 
125 
100 
1.75 
1.52 
0) 
2.11 
1.38 
0. 431 
.239 
0) 
.480 
.642 
2.181 
21 
1. 75J 
22 
0) 
2.593 
34 
30 
2.0^52 
Data not complete. 
Sep t es IVa. 
WATER 10 WOOD RATIO. 
1.40 per cent of H 2 S0 4 ; 7.5 atmospheres; minute. 
Cook No. 
Per cent of 
water. 
Yield of volatile acid (per cent of dry 
weight of wood). 
Acetic. 
Formic. 
Both. 
43.; 
200 
100 
1. 51 
1.69 
0. 160 
.290 
1.660 
44 
1.980 
54976°— 22— Bull. 983- 
