242 COMPOUND or CARBONIC oxide and oximuriatic gas. 



ously dried over mercury by the action of fused muriate of 

 lime; and the exhausted glass globe, into which they were 

 introduced from a receiver with suitable stopcocks, was 

 carefully dried. After exposure for about a quarter of an 

 hour to bright sunshine, the colour of the chlorine had en- 

 tirely disappeared; the stopcock belonging to the globe 

 being turned in mercury recently boiled, a considerable 

 absorption took place, just equal to one half the volume of 

 the mixture, and the residual gas possessed properties per- 

 fectly distinct from those belonging either to carbonic oxide 

 or chlorine. 

 Troperties of _ Thrown into the atmosphere, it did not fume. Its odour 

 *heresulting was djff erent f rom tnat of chlorine, something like that 

 which one might imagine would result from the smell of 

 chlorine combined with that of ammonia, yet more in- 

 tolerable and suffocating than chlorine itself, and affecting 

 the eyes in a peculiar manner, producing a rapid flow of 

 tears, and occasioning painful sensations. 



Its chemical properties were not less decidedly marked, 

 than its physical ones. 



Thrown into a tube full of mercury containing a slip of 

 dry litmus paper, it immediately rendered the paper red. 



Mixed with ainmoniacal gas, a rapid condensation took 

 place, a white salt was formed, and much heat was produced. 



The compound of this gas and ammonia was a perfect 

 neutral salt, neither changing the colour of turmeric nor lit- 

 mus ; it had no perceptible odour, but a pungent saline 

 taste; it was deliquescent, and of course very soluble in 

 water; it was decomposed by the sulphuric, nitric, and 

 phosphoric acids, and also by liquid muriatic acid ; but it 

 sublimed unaltered in the muriatic, carbonic, and sulphu- 

 reous acid gasses, and dissolved without effervescing in acetic 

 Decomposd acid. The products of its decomposition collected over 



mto carbonic ra ercury were found to be the carbonic and muriatic acid 

 and muriatic . . , . . , , . , 



acid gasses. gasses; and m the experiment with concentrated sulphuric 



acid, when accurate results could be obtained, these two 



gasses were in such proportions, that the volume of the 



latter whs double that of the former. 



Condense; 4 1 have ascertained by repeated trials, both synthetical and 



tiinos iis bulk analytical, that the gas condenses fonr times its volume of 



the 



