. Transactions of the American Philosophical Society. ide solution to remove any excess ofchlorine, as well as hydrochloric acid. A reaction occurred at once in E. The chlo-rine disappeared. Too high a temperature caused a pale flame to appear in the com-bustion tube, which invariably led to a deposit of carbon. It was found necessaryto maintain a very low temperature in the combustion tube. Slight condensationoccurred in O of a clear liquid. Whether an excess of chlorine, or an insufiicientquantity, or the theoretical quantity for the above reaction was used, there was formedcontinuously the
. Transactions of the American Philosophical Society. ide solution to remove any excess ofchlorine, as well as hydrochloric acid. A reaction occurred at once in E. The chlo-rine disappeared. Too high a temperature caused a pale flame to appear in the com-bustion tube, which invariably led to a deposit of carbon. It was found necessaryto maintain a very low temperature in the combustion tube. Slight condensationoccurred in O of a clear liquid. Whether an excess of chlorine, or an insufiicientquantity, or the theoretical quantity for the above reaction was used, there was formedcontinuously the tetrachloride of carbon, which collected in oily drops in F and Gr. From experiments in using different proportions of chlorine and methane, em-ploying higher and lower temperatures, and when sand or asbestos was substitutedfor the bone-black, and in using an empty combustion tube, I am led to the conclu-sion that the tendency is always to form methyl chloride and carbon tetrachloride ; Transactions Amer. Philos. Soc, Vol. XVII, Part III. Plate KESEAKCHES UPON THE CHEMICAL PROPERTIES OF GASES. 211 but that the intermediate products CriiCL and CHCI3 are only formed in relativelysmall quantity. The manufacture of chloroform from natural gas, so far as these experimentsindicate, is likely to prove of difficulty. The gas escaping from O has the odor ofmethyl chloride from methyl alcohol, is readily soluble in water and in alcohol, andburns with a green flame. The gas, after leaving P, passed into a solution of potas-sium hydrosulphide in R and then on into a solution of mercuric chloride in X. Animmediate and copious precipitation occurred in X. Methyl chloride from methyl alcohol, as is well known, is characterized by theproperty of forming a solid crystalline hydrate when conducted into icewater. Thegas, prepared by the method above described, was passed through the bottle P con-taining broken ice while the ice was slowly melting, but no trace of a crystallinehydrate appear
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