138 
PREL1MINAKY REPORT ON COAL-TESTINO PLANT [bull. 261. 
quality was obtained in quantity. The pitches that were received 
from the Barrett Manufacturing Company are designated in this report 
pitches B, C, and D. Those received from the Chatfield Manufacture 
ing Company are known as pit dies E, E, and G. 
Another pitch that was furnished by the Barrett Manufacturing 
Company was obtained as a by-product from the manufacture of gas 
from heavy petroleum. When hot, this pitch has a marked odor oj 
kerosene, but it would not mix with Kansas crude oil. It is lustrous 
and works well on a cool da} T , but is a little too soft in ordinary weathei 
for experimenting on the English machine. This pitch is designated 
pitch ZT throughout this report. 
Analyses have been made of the pitches A, B, C, D, E. F, G, H. 
and X by Mr. E. E. Somermeier, in charge of the chemical laboratory 
of the testing plant, with the following results: 
Proximate analyses of pitches. 
Pitch. 
Lai (ora- 
tory No. 
Moisture. 
Volatile 
matter. 
Fixed 
carbon. 
Ash. 
Sulphur. 
Total. 
A 
1161 
1311 
1391 
1465 
1464 
1457 
1453 
1555 
1125 
0.47 
1.14 
.88 
1.45 
1.02 
.57 
.60 
1.04 
. 33 
47. 93 
49.66 
62.75 
54. 05 
54. 11 
52.98 
52. 53 
61.44 
59. 07 
50. 79 
47. 88 
35. 84 
43.91 
44.04 
45.31 
45. 62 
36. 72 
39.44 
0. 81 
1.32 
.53 
.59 
.83 
1.14 
1.25 
.80 
1.16 
« 0. 80 
.70 
.88 
100. 8( 
B .. 
100. 7( 
C 
100.1 
I) 
100. 0( 
E 
ioo oi 
F 
100. M 
G 
H 
100. 0( 
100. 0J 
X 
101.38 
a Approximately determined. 
Ultimate analyses of pitches. 
i 
Pitch. 
A 
B 
C 
I) 
E 
F 
(i 
X 
Labora- 
tory No. 
1161 
1311 
1391 
1465 
1464 
1457 
1453 
1125 
Hydro- 
gen. 
3.97 
4.72 
4.28 
4.22 
4.16 
4.06 
4.56 
Carbon. 
90.89 
91.16 
91.57 
91.30 
91.50 
90.82 
90.34 
Nitrogen. 
1.05 
1.16 
1.10 
1.00 
1.00 
1.01 
.99 
Oxygen. 
2.07 
1.85 
2.0/ 
Sulphur. 
0. 80 
58 
88 
Calori 
value, 
S, 78 
8,93 
8,8< 
Although no definite conclusions can be drawn from the results <| 
the analyses given above, it is apparent that for pitches distilled fro * 
the same tar, under the same given conditions, those with the highe 
