BLUE STAR #7
SOURCE: rec.pyrotechnics
PREPARATION (parts by weight):
| CHEMICAL | PERCENT/PARTS | AMOUNT |
| Ammonium perchlorate | 0.700 | |
| Copper carbonate | 0.100 | |
| Red gum | 0.100 | |
| Charcoal | 0.100 | |
| Dextrin | +5 | |
Total | ||
Add isopropyl alcohol for binding. Cut, round, and pumped stars can be made with this composition, but a typical KClO4/red gum/charcoal/dextrin prime will be necessary. A final layer of sodium nitrate/sulfur/charcoal (85/5/10), moistened with NC/acetone lacquer (with about 3% NC) can be added; this adds yellowish sparks. Meal powder can be used instead, if the yellow sparks are not desired.
