Mixter — Combustion of Silicon and Silicon Carbide. 133 



Experiment J/.. 



Silicon 1 '4934 grams. 



" not burned 0-0031 " 



" burned 1-4 903 



Iron for ignition . 0*050 



Sodium peroxide. 15 " 



Water equivalent of system 3454 " 



Minutes. Temperature. Temperature interval. 



18-425 22-060— 18-431 +0-008 = 3-637 c 



1 18-428 



2 18-431 Heat observed, 3544X3-637 12562 c 



8 22-060 " of oxidation of iron —80° 



9 22-059 



10 22-058 12482 c 



11 22-056 



12 22-054 For 1 gram of silicon 8379° 



13 22-052 



Experiment 5. 



Silicon carbide 1-105 grams. 



"" " not burned . . 0-075 " 



" " burned.. 1-030 " 



Iron for ignition 0*072 " 



Sodium peroxide 11 " 



Water equivalent of system 3565-6 " 



Minutes. Temperature. Temperature interval. 



18-442 21-120 — 18-450 + 0-007 = 2'677° 



1 18-446 



2 18-450 Heat observed, 3565-6 X2-6V7 9545 c 



8 21-120 " of oxidation of iron — 115 c 



9 21-120 



10 . 21-118 9430° 



11 21-117 



12 21-116 For 1 gram of silicon carbide 9156° 



13 21-315 



Experiment 6. 



Silicon carbide 1-3987 grams. 



" " not burned 0-0073 " 



" " burned 1-3914 " 



Iron for ignition _ 0-0534 " 



Sodium peroxide ._ 15 " 



Water equivalent of system 3432*8 " 



