PHOTOFLASH POWDER COMPOSITION #9
SOURCE: Ellern
COMMENTS:
DANGER/CAUTION
Calcium metal and calcium hydride react with water exothermically to evolve hydrogen gas. Compositions containing calcium metal or calcium hydride should be sealed against moisture and should not be stored.
PREPARATION (parts by weight):
| CHEMICAL | PERCENT/PARTS | AMOUNT |
| Potassium perchlorate | 0.500 | |
| Aluminum (flake) | 0.200 | |
| Calcium metal | 0.300 | |
Total | ||
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