Elements of chemistry : including the applications of the science in the arts . when humid chlorousacid is exposed to light, and condenses as a red liquid, TEROXIDE OF CHLORINE. Hypochloric acid; eq. or : C104. This substance cannot be obtained in a state of purity without considerable dan-ger. Gay-Lussac recommends, in preparing it, to mix chlorate of potassa in thestate of a paste with sulphuric acid previously diluted with half its weight of waterand cooled, and to distil the mixture in a small retort by a water-bath. It comesoff as a gas, of a yellow colour considera
Elements of chemistry : including the applications of the science in the arts . when humid chlorousacid is exposed to light, and condenses as a red liquid, TEROXIDE OF CHLORINE. Hypochloric acid; eq. or : C104. This substance cannot be obtained in a state of purity without considerable dan-ger. Gay-Lussac recommends, in preparing it, to mix chlorate of potassa in thestate of a paste with sulphuric acid previously diluted with half its weight of waterand cooled, and to distil the mixture in a small retort by a water-bath. It comesoff as a gas, of a yellow colour considerably deeper than chlorine, which cannot becollected over mercury, as it is instantly decomposed by that metal, nor over water,which dissolves it in large quantity. It is composed of 2 volumes of chlorine with4 volumes of oxygen, condensed iuto 4 volumes, which gives it a density of gas is decomposed gradually by light, but between 200° and 212° its elementsseparate in an instantaneous manner, with the disengagement of light and a violent 344 CHLORINE. Fig. explosion, which breaks the vessels. Water dissolves about 20 times its volume ofthis gas: the gas itself is liquefied by cold, and farms a red liquid, which boils at68° (20° C.) It bleaches damp litmus paper, without first reddening it, and isabsorbed by alkaline solutions with the formation of a mixture of a chlorate andchlorite. This compound, then, resembles peroxide of nitrogen, N04, and is nota peculiar acid, but may be represented as a compound of chlorous and chloricacids: 2C104=C108+C10B. Peroxide of chlorine has a violent action upon combustibles, kindling phosphorus,sulphur, sugar, and other combustible substances in contact with which it is action upon phosphorus may be shown by throwing a drachm or two of crystal-lized chlorate of potassa into a deep foot-glass (fig. 15G) filled with cold water, to thebottom of which the salt falls without any loss by solution. Oilof vitriol is th
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