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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).
Gallic acid – used in some whistle mixes; sensitive to impact and friction, there are safer alternatives; Potassium picrate – used in some whistle compositions, safer than gallic acid but still dangerous, with heavy metals (e.g. lead) forms explosive salts; Terephthalic acid – a fuel in some smoke compositions
For a complete display, fireworks often mix different metals and metal salts to give you the vibrant, multicolored effects. Calcium salts will burn orange, while sodium salts will burn yellow.
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.
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.
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.
Depending on the nature of the ions in the mixed salt, they can offer synergistic effects on the melting process, allowing for the reduction in the amount of salt used and reducing the local ...
This reaction has been used as a gravimetric method for determining antimony, bubbling H 2 S through a solution of Sb(III) compound in hot HCl deposits an orange form of Sb 2 S 3 which turns black under the reaction conditions. [10] Sb 2 S 3 is readily oxidised, reacting vigorously with oxidising agents. [5] It burns in air with a blue flame.
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