A text-book on chemistry. For the use of schools and colleges (1866)
Draper, Henry, 1837-1882 · New York, Harper & brothers · leaf 234
ese and 3parts of powdered chlorate of po-tassa. To the mouth of the flaska tube, 5, is adapted by means ofa tight cork, the lower end of thetube dipping beneath a jar, c, onthe pneumatic trough. On rais-ing the temperature of the flask by a spirit-lamp, oxygenis freely evolved. It is derived from… … 222 PEEPAEATION OF OXYGEN. acting by presence (catalysis). The change is as fol-lows : KO+CW^KCl+O,,that is, chloride of potassium arises, and six atoms ofoxygen are given off. One ounce of the chlorate willyield about two gallons of the gas. A mixture of chlor-ate of potassa with one tenth its…
Chemistry · Physics
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