320 Preparation of Chloride of Lime. 



pears,thatallof them, when introduced into the stomach, or applied 

 tp wounds, in the quantity of forty or sixty grains, kill dogs in 

 two, three, or six days, and cause the same symptoms as the 

 oxide. — Journal de Chimie Midicale, Fevrier, Mars et Avril 

 1826. 



4. Preparation qf Chloride of Lime. 

 This substance, it is well known, was recommended not long 

 ago by M. Labarraque, a pharmacien of Paris, for destroying 

 the odour of putrefying animal and vegetable matters, and the 

 exhalations in apartments crowded with the sick ; and it has 

 been found to answer his expectations so completely, that the 

 French Government have given every possible publicity to the 

 process, and have advised its introduction into all hospitals and 

 lazarettos. The mode of preparing it is well enough known to che- 

 mists; but as several experimenters have not procured the effects 

 assigned by the discoverer, and by the official persons appointed to 

 inquire into the accuracy of his statements, and as for this and other 

 obvious reasons, it is a preparation liable to considerable va- 

 riety, M. Labarraque has published the following process for 

 making it of uniform strength and composition. To prepare 

 the dry chloride for store, he recommends that a twentieth part 

 of muriate of soda be mixed with the quicklime, after it is com- 

 pletely slaked, and that the mixture be put into deep earthen 

 pots, and the gas transmitted through it from a retort contain- 

 ing the usual ingredients, in the proportion of 576 parts of mu- 

 riate of soda, and 448 of oxide of manganese. The quantity of 

 acid required to decompose this quantity is 576 parts, diluted 

 with 448 of water ; and the acid is to be introduced into the re- 

 tort in successive portions, by means of the double bent tube. 

 To prepare the solution, which may be more convenient for hos- 

 pitals and other places where it is used daily, he recommends a 

 pound and a half of slaked lime to be mixed with forty pounds 

 of water, containing half a pound of muriate of soda in solution. 

 The tube from the retort is to be plunged nearly to the bottom 

 of the vessel which contains the milk of lime ; and the mixture 

 is to be stirred with a wooden agitator till it is saturated. In 

 this state it is too strong for use ; and may be diluted according 

 to the purpose to which it is to be applied *. In this country 



• Journal de Chimie M^dicale, Avril 1826. 



