328 



COMPOSITION OF SULPHURIC ETHER. 



Carbon. 



Hidrogen. 



Water. 



Its component 



v^aris. 



residuum water, and 230 51 parts of carbonic acid gap. 

 Hence wc must conclude, that the oxigen gas lias hurned 

 395 -28 parts of hidrogen gas contained in the etlier. 



Admitting the numbers I have given to represent cubic 

 inches, and substituting for these the corresponding iv eights, 

 the barometer being at 27 inches, and the thermometer a,t 

 18" [72-5 F.], we find, that 100 cubic inches of ethereal 

 vapour weigh 65 447 grains, and contain, 



1, The carbon of 230*51 cubic inches of carbonic acid 

 gas, or 38-64 grains of carbon. 



2, Hidrogen gas 395 28 cubic inches, weighing 1,2-62 

 grains. 



3, A quantity of oxigen a^d hidrogen answering ti? 

 14-187 grains of water. 



On substituting for the water its elements, and propor- 

 tioning all the results of the analysis to 100 parts of ether 

 by weight, we find, that they contain 



/ Carbon . . - . 59-04 

 Hidrogen - . _ _ 21-86 

 Oxigen > . _ . ig-i 



100. 

 General results. These results are reducible to the following: 10 grains of 

 ether consume for their combustion 61 cubic inches of ox- 

 igen gas, at 28 inches of the barometer, and 10'' of the 

 thermometer [54-5 F.], forming water, and 3.2-85 cubic 

 inches of carbonic acid gas. 



The analysis I have just related was repeated four times, 

 and a mean of the four indicates in 100 parts of ether 

 ' ' Carbon - - . . 58-2 



Hidrogen - _ - _ 22-14 

 Oxigen , . ' - > . 19-66 



100. 



gas than will consume all the etliereal vapour, or merely sufficient 

 for this purpose, a black powder, or £oot, will be deposited on the 

 •^idcs of the eudiometer, and some free oxigen gas will remain in 

 the aeriform residuum of the detonation. This soot does not ap- 

 pear, when the cUierised oxigen gas is detonated with a quantity 

 of oxigen gas much superior to what is requisite for burning the 

 whole of the ethereal vapour. 



Sect. 



