CHLORATE MIXTURES. 523 



2. Take first the chlorate mixed with carbon supposed pure 



2C10 3 K + 30 = 3C0 2 + 2KC1. 



The equivalent weight is 140 "6 grms., and there is formed 

 66 grms. carbonic acid and 74*6 potassium chloride, which 

 makes for 1 kgm. 872 grms. chlorate, 128 grms. carbon, with 

 the production of 469 grms. carbonic acid. 



The heat liberated amounts to -f 152 Cal. at constant pres- 

 sure, 4- 153*5 at constant volume ; or, for 1 kgm., 1010 Cal. 

 at constant pressure, 1092 at constant volume. 



Eeduced volume of the gases, 33'5 litres; or, for 1 kgm. 

 238 litres. 



_ 238 atm. . _ _ . 



Permanent pressure = , with the usual reservation. 



n (j'2ii , 



. u 5950 atm. 

 Theoretical pressure = 0^7" 



3. Take again chlorate mixed with sulphur 



2C10 3 K -f 3S = 3S0 2 +2KC1. 



This mixture ignites at 150. 



The equivalent weight is 170'6 grms., and there is formed 

 96 grms. sulphuric acid and 74'6 grms. potassium chloride. 

 This makes for 1 kgm. 719 grms. chlorate, 281 grms. sulphur, 

 with the production of 563 grms. sulphurous acid. The heat 

 liberated amounts to 124*8 Cal. at constant pressure, 126*3 at 

 constant volume ; or, for 1 kgm., 731 Cal. at constant pressure, 

 740 Cal. at constant volume. 



Eeduced volume of gases, 33-5 litres ; or, for 1 kgm., 196*4 

 litres. 



196-4 atm. 



Permanent pressure = - , with the usual reservation. 



ti 0*22 



4120 atm. 



Theoretical pressure = . 



n - 0'22 



4. Chlorate mixed with equal weights of sulphur and carlon 

 (total combustion) 



22C10 3 K -f 9S + 24C = 9S0 2 + 24C0 2 + 22KC1. 



The equivalent weight is 1637 grms. and there is formed 288 

 grms. sulphurous acid, 528 grms. carbonic acid, and 821 grms. 

 potassium chloride ; which makes for 1 kgm. 824 grms. chlorate, 

 88 grms. sulphur, 88 grms. carbon, with the production of 176 

 grms. sulphurous acid and 322 grms. carbonic acid. 



The heat liberated amounts to 1560 Cal. at constant pressure, 

 1576 at constant volume; or, for 1 kgm., 953 at constant 

 pressure, 963 at constant volume. 



