CONTROL OF DECAY IN PULP AND PULP WOOD 
37 
Table IS.— Preservative treatment of pulps 
["A" or "B" appearing in the second column refers to test A or test B described in the text. "S" denotes 
sulphite pulp. All other was ground wood] 
Preservative 
Alphanaphtjdamine - 
Do 2 
Do 2 
Do? 
Aluminum chloride, c. p 
Aluminum sulphate, c. p 
Aluminum and potassium sul 
phate, c. p. 
Ammonium bifluoride 
Do 
Do 
Do 
Ammonium carbonate, c. p... 
Ammonium chloride 
Ammonium fluoride 
Do 
Do 
Do 
Do 
Do 
Ammonium nitrate 
Ammonium sulphate 
Barium chloride, c. p 
Do 
Do 
Beta naphthol-- 
Do. 
Boric acid 2 
Do 2 
Do 2 
Borobenzoic acid 2 3 
Do 2 3 
Monobromo naphthalene 3 — 
Do 3 
Do* 
Calcium benzoate... 
Do 2 
Do 2 
Do 2 
Do 2 
Do 2 
Calcium borate 
Do -. 
C alcium chlorate 
Do 
Calcium chloride 
Calcium sulphocarbolate 
Do 
Carbolic acid 
Carvacrol oil No. 5 5 > 6 
Carvacrol oil No. 4 7 » 6 
See footnotes on page 43. 
Pounds 
of 
chemical 
per ton 
oven-dry 
pulp 
5.7 
9.3 
10.1 S 
21.9 S 
39.9 
88.0 
96.9 
10.9 
28.9 
22.9 S 
46.2 S 
81.4 
97.6 
14.7 
35.4 
68.5 
14.7 S 
23.8 S 
56.1 S 
103.4 
57.5 
53.2 
86.5 
94.8 
1.0 
5.7 S 
24.7 B 
82.2 
126.7 S 
34.3 
63.0 S 
5.3 
9.4 
9.6 S 
10.9 
25.2 
55.4 
23.3 S 
49.8 S 
95.3 S 
57.9 
132.8 S 
61.2 
110.2 S 
86.8 
35.4 
95.6 S 
19.9 
37. A 
37. A 
Effect of chemical on 
pulp 
Yellow. 
do. 
Slightly brown- 
None 
Bleaches 
do 
do 
Slightly brown. 
None 
.do- 
Brittle. 
Soft.... 
do- 
Slightly brown. 
None 
do 
do 
do 
Slightly brown. 
None 
Purple-brown. 
Pink-brown. 
Slightly brown- 
None 
Slightly brown- 
None..- .-. 
do 
Slightly brown. 
None . 
..do. 
..do. 
..do. 
..do. 
..do. 
..do. 
..do. 
Yellowish. 
None 
.do . 
.do. 
do... 
Slightly pink- 
Months 
in 
storage 
Condition at time of 
inspection 
Molded and very rotten. 
Severely molded and de- 
cayed. 
Considerably molded and de- 
cayed. 
Somewhat molded and de- 
cayed. 
Severely molded and de- 
cayed. 
Do. 
Do. 
Do. 
Do. 
Do. 
Somewhat molded and de- 
cayed. 
Severely molded and de- 
cayed. 
Do. 
Do. 
Do. 
| Considerably molded. 
Severely decayed. 
Severely molded and de- 
cayed. 
Severely decayed. 
Severely molded and de- 
cayed. 
Do. 
Do. 
Do. 
Slightly molded and de- 
cayed. Fair condition at 
24 months. 
Severely molded and de- 
cayed. 
Slightly molded; no decay. 
Good condition; slightly 
molded. 
Slightly molded. Failed be- 
fore 24 months. 
Slightly molded. 
Severely molded and de- 
cayed. 
Slightly molded. Somewhat 
worse at 22 months. 
Severely molded and de- 
cayed. 
Do. 
Somewhat molded; no decay. 
No change at 24 months. 
Severely molded and de- 
cayed. 
Do. 
Do. 
Do. 
Do. 
Do. 
Do. 
Do. 
Do. 
Somewhat molded and de- 
cayed. 
Severely molded and de- 
cayed. 
Do. 
No mold or decay. Slightly 
molded and apparently 
somewhat decayed at 22 
months. 
Somewhat molded; no decay. 
Failed before 24 months. 
Xo mold or decay. 
Very slightly molded. 
