CONTROL OF DECAY IN PULP AND PULP WOOD 
Table 13. — Preservative treatment of pulps — Continued 
41 
Preservative > 
Pounds 
of 
chemical 
per ton 
oven-dry 
pulp 
Effect of chemical on 
pulp 
Months 
in 
storage 
Condition at time of 
inspection 
Sodium arsenate, c. p.. .. . . 
107.9 S 
102.8 
94.6 S 
15.3 
41.4 
70.5 
19.2 S 
52.4 S 
100.2 S 
109.3 
203.1 
106.2 S 
188.1 S 
54.1 B 
83.7 A 
90.0 
130.2 A 
135.9 
99.0 S 
81.6 
125.7 S 
124 8 
173.3 
125.5 S 
204.1 S 
174.6 
83.5 
91.3 
106.5 
4.0 
7.9 B 
8.0 
10.6 
13.8 A 
16.0 
20.6 
27.8 A 
32.0 
33.5 
20.9 S 
41.3 S 
8.0 
16.0 
18.5 A 
21.9 B 
27.8 A 
32.0 
Slightly brown 
12 
24 
12 
11 
11 
11 
11 
11 
11 
12 
24 
24 
24 
7 
6 
24 
16 
13 
12 
12 
11 
13 
13 
24 
12 
12 
13 
12 
12 
6 
7 
6 
13 
16 
6 
13 
16 
ii 
24 
12 
6 
6 
6 
7 
6 
6 
Very slightly molded; no de- 
cay. No change at 24 
months. 
Slightly molded; no decay. 
Do 
do 
do.... 
do 
do. 
do 
Slightly brown 
do 
Brown . 
Sodium benzoate.. . 
cay. No change at 24 
months. 
Do 
cayed. 
Do. 
Do. . 
Do. 
Do 
Do. 
Do 
Do. 
Do.. 
Sodium bicarbonate. 
decayed. 
Do- 
do 
cayed. 
Slightly molded; no decay. 
Do. 
Do. . 
Slightly brown 
Do 
Sodium borate (borax) 
Severely molded; no decay. 
Considerably molded; node- 
Do.... 
Slightly brown 
do 
Do.. 
cay. No change at 16 
months. 
Slightly molded; no decay. 
Do. 
Do. 2 
.. do... 
DO.2 
do 
Slightly molded and de- 
D0.2 
do 
cayed. No change at 24 
months. 
Shghtly molded and de- 
Sodium bromate, c. p 
cayed. 
Severely molded and de- 
Do 
•Slightly brown 
cayed. 
Do. 
Do 
do 
Somewhat molded; no de- 
Do.... 
Slightly brown. . 
Brown... ._ 
cay. No change at 24 
months. 
Slightly molded; no decay. 
Somewhat molded; slightlv 
Do... 
decayed. No change at 24 
months. 
Sodium citrate. 
Slightly brown 
cayed. 
Considerably molded and 
decayed. 
Do 
.... do.. 
cayed. 
Do. 
Do 
No mold or decay. 
Do 
Slightly darkened 
None 
Very slight molding. 
Do. . 
Severely molded and de- 
Do... 
Slightly yellow 
Slightly darkened 
cayed. 
Very slightly molded; no de- 
Do... 
cay. 
No mold or decay. 
Do. 
Severely molded and de- 
Do 
Slightly yellow 
Slightly darkened 
Slightly yellow 
None 
cayed. 
Slightly molded; no decay. 
Do. 
No mold or decay. 
Do 
Somewhat molded and de- 
Do. 
cayed. 
Slightly molded; no decay. 
Do.... 
Yellow stains 
Somewhat molded; slightly 
None. 
decayed. 
Slightly molded. 
Do. 
do 
Do. 
Do. . 
do 
Considerably molded; no de» 
Do.. ---. 
do 
do 
do 
cay. No change at 16 
months. 
Slightly molded; no decay. 
Do.... 
Considerably molded; no de- 
Do. 
cay. No change at 16 
months. 
Very slightly molded. 
See footnotes on page 43. 
