Coal Its Properties Analysis Classification Geology Extraction Uses And Di
Coal Its Properties Analysis Classification Geology Extraction Uses And Di
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The conchoidal fracture is not so well developed as in anthracite, and the cleats are more numerous. It crumbles more readily in the fire and owing to a greater percentage of volatile matter it kindles more readily than anthracite and emits a small amount of yellow flame when ignited. Owing to more rapid consumption its efficiency is greater than that of anthracite for certain purposes. The volatile 1 Rogers, H. D. , Geology of Pennsylvania, pp. 988-990, 1858.
2 Analyses of coals in the United ...States. Bur. Of Mines, Bull. 22, 1912.
3 Op. Cit.
PLATE IV.
FIG. I. Subbituminous coal showing irregular fracture.
FIG. 2. Pennsylvania anthracite showing typical conchoidal fracture.
(9-0 94 VARIETIES AND RANKS OF COAL matter varies from 6 to 1 1 per cent and averages from 7 to 8 per cent. The specific gravity is about 1. 4. Analyses of this type of coal from the United States 1 indicate the following range in composition: Moisture i . 96- 7 . 94 per cent Volatile matter 6. 81-32 . 46 Fixed carbon 58 .
What to read after Coal Its Properties Analysis Classification Geology Extraction Uses And Di?
You can find similar books in the "Read Also" column, or choose other free books by Elwood S Moore to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The conchoidal fracture is not so well developed as in anthracite, and the cleats are more numerous. It crumbles more readily in the fire and owing to a greater percentage of volatile matter it kindles more readily than anthracite and emits a small amount of yellow flame when ignited. Owing to more rapid consumption its efficiency is greater than that of anthracite for certain purposes. The volatile 1 Rogers, H. D. , Geology of Pennsylvania, pp. 988-990, 1858.
2 Analyses of coals in the United ...States. Bur. Of Mines, Bull. 22, 1912.
3 Op. Cit.
PLATE IV.
FIG. I. Subbituminous coal showing irregular fracture.
FIG. 2. Pennsylvania anthracite showing typical conchoidal fracture.
(9-0 94 VARIETIES AND RANKS OF COAL matter varies from 6 to 1 1 per cent and averages from 7 to 8 per cent. The specific gravity is about 1. 4. Analyses of this type of coal from the United States 1 indicate the following range in composition: Moisture i . 96- 7 . 94 per cent Volatile matter 6. 81-32 . 46 Fixed carbon 58 .
What to read after Coal Its Properties Analysis Classification Geology Extraction Uses And Di?
You can find similar books in the "Read Also" column, or choose other free books by Elwood S Moore to read onlineMoreLess
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