. Transactions of the American Philosophical Society. <!?A< •A<D o 03 D< I—1 << RESEARCHES UPON THE CHEMICAL PROPERTIES OF GASES. 221 VI. QUANTITATIVE ANALYSIS OF NATURAL GAS. It is not possible to determine the proportion of the individual paraffins in a gasmixture by the Bunsen method of explosion of oxygen unless it can be positivelyasserted that only two paraffins occur. This may be readily shown by an a mixture of one volume each of marsh gas, ethane and propane is burnt, the vol-umes of oxygen required, carbon dioxide and steam produced will be as follows: OX
. Transactions of the American Philosophical Society. <!?A< •A<D o 03 D< I—1 << RESEARCHES UPON THE CHEMICAL PROPERTIES OF GASES. 221 VI. QUANTITATIVE ANALYSIS OF NATURAL GAS. It is not possible to determine the proportion of the individual paraffins in a gasmixture by the Bunsen method of explosion of oxygen unless it can be positivelyasserted that only two paraffins occur. This may be readily shown by an a mixture of one volume each of marsh gas, ethane and propane is burnt, the vol-umes of oxygen required, carbon dioxide and steam produced will be as follows: OXYGEN KEQUIRED. CO^. VAPOR. 1 vol. methane 2 vols. 1 vol. 3 vols. 1 ethane 3^ 3 3 1 propane 5 3 4 lOJ 6 9 Three volumes of ethane require for combustion ten and one-half volumes ofoxygen, and yield six volumes CO2 and nine volumes of steam. Hence a mixture of three gaseous paraffins could not be distinguished, in thecase of a volumetric analysis, from the intermediate paraffin. Moreover, the heat ofcombustion of three volumes of t
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