. Essentials of medical and clinical chemistry. With laboratory exercises . Fig. 10. a colorless liquid (sp. gr. of ). Water dissolves only threevolumes to the hundred, but this is enough to sustain aquatic Properties,—Intense affinities ; combines with everyelement except fluorine. The productof its action is called an oxide, and theprocess oxidation. Oxidation so rapid asto produce heat and light is called com-bustion; if nolight, slow com-bustion. Sub-stances thatburn in airburn more bril-liantly in oxygen,18 and many sub-stances that do not burn in air willburn in this g
. Essentials of medical and clinical chemistry. With laboratory exercises . Fig. 10. a colorless liquid (sp. gr. of ). Water dissolves only threevolumes to the hundred, but this is enough to sustain aquatic Properties,—Intense affinities ; combines with everyelement except fluorine. The productof its action is called an oxide, and theprocess oxidation. Oxidation so rapid asto produce heat and light is called com-bustion; if nolight, slow com-bustion. Sub-stances thatburn in airburn more bril-liantly in oxygen,18 and many sub-stances that do not burn in air willburn in this By this propertyoxygen is usually recognized and dis-tinguished from most other gases. Oxygen, especially in its dilutedform (air), is the great supporter ofcombustion, for which its abundanceand universal presence eminently fit and supporter of com-bustion are only relative terms. Whena combustible substance burns in a supporter of combustion the union is mutual, one being as mucha party to the action as the other. A jet of air or oxygen burns. 18 A bit of phosphorus, dried by pressing between folds of blotting paper, isplaced in a combustion spoon, ignited, and lowered into a jar of combustion is so intense that the phosphoros volatilizes, and its vaporburns throughout the jar with a brilliancy so dazzling that it is called the phosphorus sun. 19 A watch-spring is wound into a spiral, tipped with a bit of tinder or apiece of yarn dipped in sulphur. This is lighted and lowered into a jar ofoxygen. (Fig. 9.) The iron catches fire and burns with brilliant scintilla-tions, globules of melted iron falling and melting into the glass, unless thebottom be covered with sand or water. PART I.—INORGANIC CHEMISTRY. 23 as readily in coal gas as a jet of coal gas barns in air or one in greatest abundance is usually called the supporter ofcombustion. Oxidizing agents are compounds in which oxygen is held sofeebly it is readily given up to sub
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