Flash powder

From Freepedia

Flash powder is a mixture of oxidizer and metallic fuel which burns extremely quickly and if confined will produce a loud report. It is widely used in fireworks and theatrical pyrotechnics (Such as salute shells) and was once used for flashes in photography before flash bulbs.

Different varieties of flash powder are made from different compositions, most common are potassium perchlorate and aluminum powder. Also sometimes used are barium nitrate, Red phosphorus, calcium carbonate, potassium permanganate, potassium chlorate, antimony sulfide, sodium chlorate, sulfur.

Chemically it is highly unstable. It is a heat, friction, and impact sensitive explosive. It is considered to be one of the most sensitive pyrotechnic compositions.

Flash powder is a mixture of oxidizer and metallic fuel which burns extremely quickly, and if confined will produce a loud report. It is widely used in fireworks and theatrical pyrotechnics (such as salute shells) and was once used for flashes in photography before the invention of flash bulbs.

Different varieties of flash powder are made from different compositions; the most common is a mizture of potassium perchlorate and aluminum powder. Additional chemicals used in the synthesis of flash powder are barium nitrate, red phosphorus, calcium carbonate, potassium permanganate, potassium chlorate, antimony sulfide, sodium chlorate, and sulfur.