A text-book on chemistry : for the use of schools and colleges . Can it be liquefied ? Is it soluble in water? From wbat circumstanceis its name derived ? What are its relations in the ordinary processes ofcombustion ? Describe its effect on a lighted taper, and on ignited char-coal. COMBUSTION IN OXYGEN. 173. A piece of India-rubber set on fire, and immersed inoxygen gas, burns with the emission of a daz- Fig. light. And if, upon a small stand, someburning sulphur is placed, and a jar of oxygeninverted over it, as shown in Fig. 154, thelight which is emitted is of a splendid bluecol
A text-book on chemistry : for the use of schools and colleges . Can it be liquefied ? Is it soluble in water? From wbat circumstanceis its name derived ? What are its relations in the ordinary processes ofcombustion ? Describe its effect on a lighted taper, and on ignited char-coal. COMBUSTION IN OXYGEN. 173. A piece of India-rubber set on fire, and immersed inoxygen gas, burns with the emission of a daz- Fig. light. And if, upon a small stand, someburning sulphur is placed, and a jar of oxygeninverted over it, as shown in Fig. 154, thelight which is emitted is of a splendid bluecolor, and the smoke ascending up the middleof the jar, and falling in curious rings downits sides, affords an illustration of the mannerin which currents are excited in gases. But it is not alone such substances as wood, char-coal, or sulphur which will bum in oxygen gas ; Fig. bodies commonly regarded as incombustihlegive rise to the same result. If a piece of steelwire be rolled round into a spiral, and the ex-tremity of it be dipped in melted sulphur, orwrapped round with cotton, so as to afford themeans of introducing it in an ignited conditionTig. 156. into oxygen gas, the combustion is at once commu-nicated to the steel, whichburns in a very brilliant man-ner, emitting scintillations. A st
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