37i 



mrroKS gas^ 



iBuriatic add 

 fas. 



Wby ihe com- 

 pound was nol 

 before ob* 

 »eiTed, 



Hfperoximth- 

 riatk ackl of 

 S*Ir. Chevenix. 



Explosion* 

 from hyper- 

 oKimuriates. 



All the facts 

 Confirm the 

 simple nature 

 «f oximuriatic 



«••-. 



COMBrNATION OF OXtMtJRtATIC GAS AND OXIGEK. 



owing to its actiou upon the oxigen mixed with the oximu- 

 riatic gas. 



It produced dense red fumes when mixed with nitrous 

 gas, ftnd there was an absorption of volume. 



When it was mixed with muriatic acid gas, there was a 

 gradual diminution of volume. By the application of heat 

 the absorption was rapid, oximuriatic gas was formed, and a 

 dew appeared on the sides of the vessel. 



These experiments enable us to explain the contradictory 

 accounts that have been given by different authors of the 

 properties of oximuriatic gas. 



That the explosive compound has not been collected 

 before is owing to the circumstance of water having been 

 used for receiving the products from hyperoximnriate of 

 potash, and unless^ the water is highly saturated with the ex- 

 plosive gas, nothing but oximuriatic gas is obtained ; or to 

 the circumstance of too dense an acid having been em- 

 ployed. 



This substance produces the phenomena, which Mr. Che- 

 nevix, in his able paper on oximuriatic acid, referred to the 

 hyperoxigenised muriatic acid ; and they prove the truth of 

 his ideas respecting the possible existence of a compound of 

 oximuriatic gas andoxigem in a separate state. 



The explosions produced in attempts to procure the pro- 

 ducts of hyperoximnriate of potash by acids are evidently 

 owing to the decomposition of this new and extraordinary 

 substance. ' ^^ 



All the cohcUisions, which I have ventured to make re- 

 specting the undecompouuded nature of oximuriatic gas, 

 are, I conceive, entirely confirmed by these new facts. 

 '^ If oxiriihTintic g^fe contained dxl gen,' It fs not easy to^ con- 

 ceive, why oxigen should be afforded by this new compound 

 tb muriatic gas, which must alrxVady contain oxigen in inti- 

 ftliate union. Though on the idea of muriatic acid being a 

 compound of Ijidrogen and oximuriatic gas, the phenomena 

 are such as might be expected. 4r^ i^s^s 



If the power of bodies to burn in oximuriatic gas depended 

 upon the presence of oxigen, they all ought to burn with 

 much more energy in the new compound ; but copper, and 

 iantimony, and mercury, and arsenic, and iron, and sulphur 



have 



