1835.] Decolourizing Combinations of Chlorine. 343 



appears to be, therefore, superior to nitric acid, and even, 

 in a certain measure, to peroxide of hydrogen, for the 

 purposes of communicating oxygen to substances ; but still 

 it may be proper to rank it under nitric acid, as its oxy- 

 dating properties depend upon its disposition to form a 

 nitrate, soluble in acid. 



The different chlorides and bromides of carbon are but 

 slowly acted on by chlorous acid ; but the periodide of carbon 

 is attacked with great energy by chlorine, carbonic acid 

 and carbonic oxide being disengaged, and iodine precipi- 

 tated, while iodic and muriatic acids remain in solution. 



Cyanogen precipitates an oily liquid, which appears to be 

 a mixture of chlorides of cyanogen and azote ; muriatic and 

 cyanic acids being dissolved, and a mixture of chlorine, 

 azote, carbonic acid, and a little chloride of cyanogen, pre- 

 senting themselves in an elastic state. 



Sulphur et of Phosphorus and Sulphur et of Carbon are con- 

 verted, respectively, into sulphuric, phosphoric and muriatic 

 acids, and into sulphuric and muriatic acids, with some 

 chloride of sulphur, and the disengagement of chlorine and 

 carbonic acid. 



defiant gas and chlorous acid give origin to chloride of 

 carbon and chlorine. 



Ammonia and chlorous acid act differently according to 

 circumstances. When ammonia is poured into the acid, 

 azote is disengaged, and probably chlorite of ammonia is 

 formed. Chloride of azote may be formed by suspending a 

 portion of an ammoniacal salt in dilute chlorous acid. 



Phosphuretted and arsenietted hydrogen are converted into 

 phosphoric, arsenic, and muriatic acids, and sulphuretted 

 hydrogen undergoes a similar change, but without the 

 emission of light, although the heat disengaged is very 

 considerable. 



The hydrogen acids present, with chlorous acid, similar 

 phenomena. In operating with hydriodic acid gas, water, 

 iodic acid and chlorine are formed, and much heat is dis- 

 engaged. 



With anhydrous hydrocyanic acid chlorine is produced ; 

 and the liquid, besides muriatic and cyanic acid, contains a 

 great quantity of chloride of cyanogen. 



The metallic sulphur ets treated with liquid chlorous acid 



