What a Ton of Coal Yields.
A ton of coal'yields about 8000 oubio feet of gas and 1500 pounds of ooke. The purification cf the gas furnishes 45 gallons of ammonia water, from which is obtained sulphate of ammonia for agricultural purposes, and about 130 pounds of tar. It is here that the operation becomes especially interesting, for from this last named product are obtained 70 pounds of pitch, 18: of creosote, 9 of naphtha,-13 of heavy oils, 6 of naphthaline, 4 of napthol, 2 of alizarine, about 1 each of phenol, aurine, and aniline (the substance to Which we are indebted for so • wondeifol oloura), .10 ounces of tolnidine, 6 fßthfacene, and 12 of toluene. Finally, it
will interest photographers to know that hydroquiuon, that product that has been so much spoken of recently, and which was at first obtained from cinchona, is now obtained from coal by industrial processes.—La Science eu Famille.
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https://paperspast.natlib.govt.nz/newspapers/NZMAIL18881123.2.14.12
Bibliographic details
New Zealand Mail, Issue 873, 23 November 1888, Page 5
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154What a Ton of Coal Yields. New Zealand Mail, Issue 873, 23 November 1888, Page 5
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