CHLORINATED LIME 209 



nutrition, especially in young animals. It is frequently 

 given to rapidly-growing, rickety subjects, and conjoined 

 with iron, for anaemic, badly-nourished, scouring animals, 

 beneficially restoring the phosphates, which in such cases 

 are sometimes too freely removed. For pregnant animals 

 in a weakly state it is also prescribed. This treatment is 

 suggested by the known effects of phosphorus on metabolism 

 and nutrition, but for this purpose the hypophosphites, or 

 glycerophosphates, which are easily absorbed are better 

 than the phosphates, whilst preparations of free phosphorus 

 are the most reliable. Bran and bruised oats owe in part 

 their notable dietetic value for young stock to the large 

 amount of calcium phosphate which they contain. 



DOSES, etc. Horses take 39- to 3i y - 5 cattle, ^iv. to 

 gij. ; sheep and pigs, 3j. to 3ij. ; dogs, grs. v. to grs. x. 

 Small doses are preferable to large, which sometimes derange 

 the bowels. They are conveniently given mixed with food, 

 and in combination with an iron salt. 



CALX CHLORINATA. Chlorinated Lime. Calcium Hypo- 

 chlorite. Bleaching Powder. CaCl 2 2 , CaCl 2 . 



It is obtained by exposing slaked lime to the action of 

 chlorine gas until absorption ceases. 



PROPERTIES. It is a dull- white powder, with a charac- 

 teristic smell, and an acrid taste. When exposed to the air 

 it becomes moist and gradually decomposes. When heated 

 or mixed with an acid, chlorine is rapidly given off. It is 

 partially soluble in water, a portion of the lime remaining 

 undissolved. The solution evolves chlorine copiously upon 

 the addition of an acid. The intensity of its odour and the 

 degree of its solubility are simple approximative tests of its 

 strength and purity, and a good specimen yields at least 

 33 per cent, of chlorine. 



ACTIONS AND USES. Bleaching powder is irritant, stimu- 

 lant, astringent, antiseptic, and alterative ; it is seldom 

 given internally, but externally it is stimulant, antiseptic, 

 deodorant, disinfectant, and parasiticide, and owes its 

 several actions mainly to the hypochlorous acid and chlorine 

 it so readily evolves. 



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