BARII CHLORIDUM — BARIUM CHLORIDE 357 



Action. Externally and locally. Lime is irritant and caustic, 

 but less so than sodium and potassium hydrates. The hydrate is less 

 caustic than lime. 



Internally. Lime is used only in the form of some of its official 

 preparations. Its action is due to the hydroxyl ion instead of the 

 calcium. In solution it is a sedative, antacid, slightly astringent, 

 and like other alkalies assists in the solution of mucus. 



Uses. Externally. Lime is commonly used as a disinfectant 

 and deodorant for cess polls, where a cheap agent is required. It 

 produces its action hy combining with water to form slaked lime. 

 Ordinary whitewash is not antiseptic in the strict sense of the word, 

 although it may cover up infection, but may be made antiseptic by 

 the addition of sufficient quantities of crude phenol or other disin- 

 fectant. 



Slaked lime may be used as an antiseptic, desiecant, and absor- 

 bent powder for wounds either when used alone or in combination 

 with equal parts of charcoal. Enemata of lime water are often 

 serviceable for the removal of oxyures or pin worms. 



Carron oil is a very good dressing for superficial burns, but 

 should be rendered antiseptic with phenol or other antiseptic. It 

 should be kept upon the burned surface by means of soft cloths which 

 have been saturated with it. 



Internally. Lime water is sedative to the stomach and will 

 often relieve the vomiting of gastritis of dogs and eats. It is often 

 mixed with the milk for animals which are brought up artificially 

 to dilute it and to diminish the size of the curds formed in the 

 stomach. Lime water and carron oil often prove of service in heaves 

 of horses. The former may be sprinkled upon hay or given in water 

 while the latter may be given upon grain. Carron oil is a useful 

 laxative for small or young animals. 



CALCII SULPHAS EXSICCATUS 



Synonyms. Plaster Paris, Dried Calcium Sulphate 



Plaster of Paris is used only in the preparation of fixation band- 

 ages. It is not used internally. 



BARIUM 



Metallic barium is not used in medicine. 



BARII CHLORIDUM — BARIUM CHLORIDE 



Barium chloride occurs in colorless glistening rhombic plates; 

 bitter and disagreeable taste; permanent in air; soluble in 2.5 parts 

 of water. 



