GASEOUS COMBUSTION AT HIGH PRESSURES. 



305 



Explosion of Mixture CH 4 + 2 + 3CO in Bomb A. 



The results of the following two very concordant experiments in which the mixture 

 was exploded, in bomb A, at an initial pressure of about 24 atmospheres, may be 

 recorded as typical of the series. All that could be heard of the explosion was a faint 

 squeak, and although on afterwards opening the bomb there was a trace of carbon on 

 the firing wire, no carbon at all had been deposited on the bomb itself during the 

 explosion. Condensation of moisture from the products could be detected, and the 

 explosion was accompanied by a small increase of pressure. The results showed that 

 between 8 and 9 per cent, only of the original oxygen had, during the initial 

 "oxidation" stage of the explosion, combined with the carbon monoxide; the 

 remainder had reacted with the methane. The results are tabulated as follows :- 



TABLE X. Explosion of CH 4 + (X + 3CO in Bomb A. 



Experiment No. 



Pressures in atmospheres < * ' 

 Pi/l'i 



atmospheres. 



23-0 



25-2 

 1-068 



fCH, 

 Partial pressures in original mixture < CO . 



LO, . 



rC0 2 

 Partial pressures in the gaseous products < TT 



LciX 



atmospheres. 



4-32 



14-00 



4-68 



atmospheres. 



2-23 



16-85 



5-78 



0-34 



CO x OH, 

 CO., x II, 



Per cent, distribution of oxygen f to CH 4 

 deduced from unburnt CH 4 |_ to CO 



3-17 



92-0 

 8-0 



41 



atmospheres. 

 23-25 

 24-70 



1-063 



atmospheres. 



4-70 



13-85 



4-70 



atmospheres. 



2-29 



16-39 



5'57 



0-45 



3-34 



91-0 

 9-0 



Explosion o/CH 4 + O 2 + 6CO in Bomb A. 



In three other experiments (Nos. 42 to 44, inclusive), mixtures approximating to 

 2 + 6CO, were exploded in bomb A, but on account of there being a slight 

 deposition of carbon during the explosion, which might conceivably have somewhat 

 affected the accuracy of the determination of the oxygen distribution, we do not 

 propose to publish them in detail, but for purposes of comparison with experiments 



