PHOTOFLASH POWDER COMPOSITION #13
SOURCE: SA Cyclopedia
Magnesium-based flash powders are more sensitive and violent than those made with aluminum. Individuals inexperienced with flash are encouraged to avoid such compositions.
Potassium permanganate mixes are regarded as sensitive and unstable. They should not be stored under any circumstances.
Barium peroxide is unstable and prone to spontaneous decomposition. Flash mixtures made with barium peroxide should not be stored under any circumstances, and extreme caution must be exercised when handling such compositions.
PREPARATION (parts by weight):