. Chemistry for farmers. Agricultural chemistry. Fia:. 3. tion of the phosphorus will be slowly con- sumed, for it unites with the oxygen of the contained air. Both the phosphorus and oxygen are engaged in the process of slow combustion, and the water will rise and fill about one-fifth of the tube. That portion of the atmosphere which remains in the tube will prove to be nitrogen gas. This experiment proves that four-fifths of the atmos- phere is nitrogen, and the remaining fifth oxygen. If it is desired to test the gas which remains in the tube, or bell-glass, it is necessary to place the bol
. Chemistry for farmers. Agricultural chemistry. Fia:. 3. tion of the phosphorus will be slowly con- sumed, for it unites with the oxygen of the contained air. Both the phosphorus and oxygen are engaged in the process of slow combustion, and the water will rise and fill about one-fifth of the tube. That portion of the atmosphere which remains in the tube will prove to be nitrogen gas. This experiment proves that four-fifths of the atmos- phere is nitrogen, and the remaining fifth oxygen. If it is desired to test the gas which remains in the tube, or bell-glass, it is necessary to place the bolt-head and the vessel which contains the water (see Fig. 3) in a water trough, in order to trans- fer the gas to another vessel, which must be at least one- fifth smaller in order to contain nothing but the nitrosren. Nitrogen may also be pro- duced by burning phosphorus under a bell-glass, over water or mercury; when the oxygen of the contained atmosphere will be burned out. or unite with the phosphorus, by which process phosphoric acid is formed. After the fumes have been absorbed, if over water, or have Fig. 4. fallen down in white flakes upon the fluid metal, if over mercury, the contents of the bell-glass will be found to be nitrogen gas. What change in the oxygen and phosphorus by this process? What effect on the water in the tube? What gas remains in the tube? How else may nitrogen be produced ?. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Chapman, C. B. [from old catalog]. Cincinnati, W. B. Smith & co
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectagriculturalchemistr
