408 DEFINITE NON-CABBUBETTED EXPLOSIVE COMPOUNDS. 



that if these data remained constant, the theoretical temperature 

 of the products would be 581 at constant volume. 



The initial body being taken at t, the theoretical temperature 

 would be 581 + t. Take, for instance, t = 400, the tempe- 

 rature developed by the decomposition would reach 982. It 

 would even then be increased by some hundred degrees, on 

 account of the heat of fusion of potassium chlorate. 



None of these theoretical data are too much at variance with 

 observable results, if the incandescence developed at the moment 

 of the explosive decomposition of potassium chlorate be taken 

 into account. 



10. The permanent pressure, after cooling, is calculated, de- 

 ducting the volume of the potassium chloride, or 304 c.c. per 

 kilogramme of the fixed capacity, in which decomposition took 



place. For a density of charge -, we have 



2731 atm. 



n - 0-304 

 or, which is the same thing 



282-2 kgm. 

 n - 0-304 



which makes for n = 1 : 405 kgm. per square centimetre. 

 If the chlorate be supposed to explode in its own volume, 



n = ( r^-= 0*429, that is, the permanent pressure would be 



' 



2306 kgm. 



11. At the temperature of decomposition, the latter being 

 supposed produced without the aid of an external heating, the 

 theoretical pressure is nearly trebled. It becomes, in fact, 

 neglecting the dilation of the potassium chloride 



_ 855 atm. __ 869 kgm. 



n - 0-304 n - 0'304 n - 0-304 



per square centimetre. 



This makes for n = 1 : 1248 kgm. 



5. AMMONIUM NITRITE : NH 3 HNOa. 



1. The equivalent is equal to 64 grms. 



2. The following is the composition : 



Nitrogen 437-5 



Hydrogen 62-5 \ w . nro ^ 



Oxygen 500-0 / Water 562 ' 5 



1000-0 



