MUNROE-HOWELL— PRODUCTS OF DETONATION OF TNT. 205 



Nitrogen in Residual Air. 



(I) 



50 X 15-3 X .7904 X 273 X 1-2542 _ ^r. 

 ^>098 ~-^' 



in which 1.2542 = weight of i liter of N at 0° C. and 760 mm., 



50X273X15-3 ^^^1^^^ Qf ^Jj. ^^ qO ^ ^^^ 



760 X 298 



760 mm. left in 15 liter gage. 

 79.04^ per cent. N in air. 



(2) 



50 X 20.6 X .7904 X 2 73X1-2542 ^ J 



760 X 298 ■ ^' 



in which 1.2542 = weight of i hter of N at 0° C. and 760 mm., 



50 X 273 X 20.6 t ■ ^^o r A 



— . z= volume of air at o C. and 



760 X 298 



760 mm. left in 20 liter gage. 

 79.04 = per cent. N in air. 



Nitrogen in No. 8 Electric Detonator. 



2 X -80 X -0985^.158 grams, in which 2 = weight of charge in 

 grams, and 80 = per cent, mercury fulminate in charge, and 9.85 

 per cent. N in mercury fulminate. 



Total N Put in Gage. 



From explosive 54-420 grams 



From residual air 2.131 grams 



From electric detonator 158 grams 



56.709 grams 



Nitrogen in Gaseous Products of Combustion. 



Observed pressure gage reading, 8.05 kg. per sq. cm 5.925 mm. mercury 



Barometer 732 mm. mercury- 

 Total pressure in gages 6,657 mm. mercury 



