524 POWDERS WITH CHLORATE BASE. 



Volume of the gases, 368 litres ; or, for 1 kgm., 225 litres. 



225 atm. 



Permanent pressure = 73, with the usual reservation. 



n 0'25 



. 5170 atm. 



Theoretical pressure = . nr . 



7i 0*25 



5. Chlorate mixed with cane sugar 



8C10 3 K + CjaHaOu = 12C0 2 + 11H 2 + 8KC1. 



The equivalent weight is 661 grms. There is formed 264 

 grms. carbonic acid, 99 grms. water, and 298 grms. chloride, 

 which makes for 1 kgm. 742 grms. of chlorate, 258 grms. 

 sugar, with the production of 400 grms. carbonic acid, 150 

 grms. water. 



Heat liberated : + 766 Cal. liquid water * at constant volume, 

 4- 726 Cal. gaseous water ; or, for 1 kgm., 1159 CaL liquid 

 water, 1098 Cal. gaseous water. 



Volume of the gases, 134 litres liquid water, 257 litres 

 gaseous water. 



134 atm 



Permanent pressure = ^, with the usual reservation. 



n (j'26 



5400 atm. 



Theoretical pressure = 



n _ 0-23 



6. Chlorate mixed with potassium ferrocyanide (yellow 

 prussiate), supposed dry 



46KC10 3 + 9K 4 FeC 6 N 6 = 36C0 2 + 18K 2 C0 3 + 54N + 3Fe 3 4 



+ 46KC1. 



This makes by weight, 1880 grms. of chlorate and 1105 grms. 

 prussiate ; in all, 2985 grms. ; or, for 1 kgm., 630 grms. chlorate 

 and 370 prussiate. 



There is formed 528 grms. carbonic acid, 828 grms. car- 

 bonate, 232 grms. nitrogen, and 323 grms. magnetic oxide. 



The heat liberated amounts to 2700 Cal. at constant pressure, 

 2711 Cal. at constant volume ; or, for 1 kgm., 904 Cal. at 

 constant pressure, 908 Cal. at constant volume. 



Volume of the gases, 468 litres ; or, for 1 kgm., 157 litres. 



Permanent pressure = ", with the usual reservation. 



n 0*o4 



3120 atm. 



Theoretical pressure = . 

 n - 0-34 



7. We shall first compare with each other the results 

 1 Neglecting the dissolving action of the water on the chloride. 



