Intelligence and Miscellaneous Articles. 297 



for a dose, and it is recommended that it should be repeated every 

 hour. — Journal de Chimie Medicate, November 1837. 



ACTION OF CHLORINE ON OTHERS. 



M. Malaguti finds that dry chlorine, while acting in the dark upon 

 oxacid aethers, always attacks, and in a uniform manner, the sul- 

 phuric aether which is the base of them. If the acid of the compound 

 aether be represented by X, the formula, after the action of the chlo- 

 rine, will always be X, C" H^ CI* O, that is, 4 atoms of hydrogen 

 replaced by 4 atoms of chlorine. 



The action of potash on the compound chloridized aethers is also 

 constant and uniform : the residts are always chloride of potassium, 

 acetate of potash, and an organic salt with a base of potash, the acid 

 of which is that which existed in the compound chloridized aether. 



Although the action of the chlorine is constant and uniform, the 

 phaenomena which accompany it are not always the same. Thus 

 the camphoric and oenanthic ethers, during the action of chlorine, give 

 out only hydrochloric acid. The acetic and formic aethers, during 

 the same action, disengage hydrochloric acid, and acetic or formic and 

 hydrochloric aether. It sometimes happens that the acid of the com- 

 pound aether is attacked by the chlorine, and presents, in its turn, 

 the phaenomena of substitutions ; but the action of chlorine upon the 

 sulphuric aether, which serves it as a base, is not modified, and re- 

 mains independent. Sulphuric aether, subjected to the action of 

 chlorine under the same circumstances as the compound oxacid 

 aethers, among the numerous products which may be foreseen, yields 

 a liquid, the elementary composition of which is C^ H<^ C^ O. This 

 liquid is changed by the action of potash into chloride of potassium 

 and acetate of potash. 



The aethers which M. Malaguti subjected to the action of chlo- 

 rine are the camphoric, oenanthic, acetic, formic and benzoic. Some 

 other compound aethers, as the mucic and pyrotartaric, appeared to 

 him not to be attacked ; but he is going to resume these experiments, 

 and to extend them to other aethers. At present, the agreement 

 whicli the fore-mentioned facts prove to exist between the action of 

 chlorine and the compound oxacid aethers, and the action of the same 

 agent upon sulphuric aether, induce him to think that it is very pro- 

 bable, when any other compound oxacid aether may be acted upon by 

 chlorine, four volumes of hydrogen will be replaced by four volumes 

 of chlorine in the base, allowing for modifications which the acid 

 may undergo. — Journal de Chimie Medicate, November 1837. 



CAMPHORIC ACID. 



According to M. Malaguti, the formula for camphoric acid is thus 

 written : 



Anhydrous acid C^" H'* O^ 



Hydrated acid C'^<> H'* O^, H^ O, 



Camphorate of silver, &c C-o H^^ O^, AgO. 



The acid, yielded by the action of nitric acid upon camphor, is 



