218 MUNROE-HOWELL— PRODUCTS OF DETONATION OF TNT. 



Analysis of Gases. 

 (i) As Found in Gage (Per Cent.). 



CO, 1.3 0.9 



O .0 .0 



CO 59-7 59-1 



H 22.8 23.5 



CH4 1.2 1.2 



N 150 15.3 



(2) Calculated Free from N in Residual Air and Electric Detonator 



(Per Cent.). 



CO2 1.3 0.9 



O .0 .0 



CO 60.0 59.4 



H 22.9 23.6 



CH4 1.2 1.2 



N 14.6 14.9 



Absolute pressure in gage 10,876 mm. 10,661 mm. 



Liters of gases 198.49 195-95 



Nitrogen check +-005 gms. — .151 gms. 



It will be noted from the above comparison that for equal weight 

 of charge, the density of cartridge has no effect, within the experi- 

 mental error, on the gaseous products of combustion of TNT. 



Effect of Different Priming Substances on Products of 



Combustion of TNT. 



In carrying out these tests, occasionally samples of gas were 

 obtained using the same weight of charge which gave widely differ- 

 ing results from the usual results. As an example, there are given 

 below three different analyses using a 400 gram charge. 



