The determination of the amounts of other gases in crude or purified
acetylene is for the most part carried out by the methods in vogue for
the analysis of coal-gas and other illuminating gases, or by slight
modifications of them. For an account of these methods the textbook on
"Gas Manufacture" by one of the authors may be consulted. For instance,
two of the three principal impurities in acetylene, viz., ammonia and
sulphuretted hydrogen, may be detected and estimated in that gas in the
same manner as in coal gas. The detection and estimation of phosphine
are, however, analytical operations peculiar to acetylene among common
illuminating gases, and they must therefore be referred to.
_Table to facilitate the Correction of the Volume of Gas at different
Temperatures and under different Atmospheric Pressures._
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| | |
| | THERMOMETER. |
| BAR.|_______________________________________________|
| | | | | | | |
| | 46 | 48 | 50 | 52 | 54 | 56 |
| | deg.
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