CAUTION: Magnesium-based flash powders are more sensitive and violent than those made with aluminum. Individuals inexperienced with flash are encouraged to avoid such compositions.

DANGER: Chlorate flash mixtures decompose faster than perchlorate flash mixtures and are more sensitive to shock, flame, spark and friction.

DANGER: Barium chlorate is unstable and prone to spontaneous decomposition. Flash mixtures made with barium chlorate should not be stored under any circumstances, and extreme caution must be exercised when handling such compositions.