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These are used to create the colors in pyrotechnic compositions like fireworks and colored fires. The color-producing species are usually created from other chemicals during the reaction. Metal salts are commonly used; elemental metals are used rarely (e.g. copper for blue flames).
Strontium chloride (SrCl 2) is a salt of strontium and chloride.It is a 'typical' salt, forming neutral aqueous solutions. As with all compounds of strontium, this salt emits a bright red colour in flame, and is commonly used in fireworks to that effect.
Barium chromate – used in delay compositions, e.g. in fireworks rockets; Lead chromate – used in delay compositions; Potassium dichromate – used infrequently as an oxidizer; can be used as a surface treatment for passivation of magnesium particles, also as a catalyst and in some matches; potassium perchlorate often added; Oxides and ...
Eutectic mixtures of alkali metal nitrates are used as molten salts. For example, a 40:7:53 mixture of NaNO 2: NaNO 3:KNO 3 melts at 142 °C and is stable to about 600 °C. [4] A minor use is for coloring the light emitted by fireworks: [5] lithium nitrate produces a red color, sodium nitrate produces a yellow/orange color,
Colored fire is a common pyrotechnic effect used in stage productions, fireworks and by fire performers the world over. Generally, the color of a flame may be red, orange, blue, yellow, or white, and is dominated by blackbody radiation from soot and steam.
Aluminium metal is used to produce silver and white flames and sparks. It is a common component of sparklers. Ba: Barium: Barium salts are used to create green colors in fireworks, and it can also help stabilize other volatile elements. C: Carbon: Carbon is one of the main components of black powder, which is used as a propellent in fireworks.
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Pyrotechnic stars are pellets of pyrotechnic composition which may contain metal powders, salts or other compounds that, when ignited, burn a certain color or make a certain spark effect. They are a part of all projectile-type fireworks. The most common is the aerial shell.
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