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Strontium nitrate is an inorganic compound composed of the elements strontium, nitrogen and oxygen with the formula Sr(NO 3) 2. This colorless solid is used as a red colorant and oxidizer in pyrotechnics .
Color Compound name Chemical formula Notes Red Strontium nitrate: Sr(NO 3) 2: Common. Used with chlorine donors. Excellent red, especially with metal fuels. Used in many compositions including road flares. Red Strontium carbonate: SrCO 3: Common. Produces good red. Slows burning of compositions, decomposes yielding carbon dioxide. Fire ...
Color Chemical Image Red: Strontium chloride or strontium nitrate: Orange: Calcium chloride: Yellow-green: Barium chloride: Orange-yellow: Sodium chloride (table salt) Apple green: boric acid: Green: Copper(II) sulfate and boric acid: Blue: Copper(I) chloride and butane: Violet: 3 parts potassium sulfate, 1 part potassium nitrate (saltpeter ...
Strontium nitrate – most common oxidizer/colorant for red colors in flares, fires, and stars; strontium also serves as a stabilizer for the mixtures. [4] At lower temperatures (with organic fuels) produces strontium nitrite ash which can smother the flame; decomposes completely at higher temperatures (with magnesium).
A flame test involves introducing a sample of the element or compound to a hot, non-luminous flame and observing the color of the flame that results. [4] The compound can be made into a paste with concentrated hydrochloric acid, as metal halides, being volatile, give better results. [5] Different flames can be tried to verify the accuracy of ...
Strontium nitrate; Strontium peroxide; Strontium sulfate This page was last edited on 27 May 2021, at 14:32 (UTC). Text is available under the Creative Commons ...
The color-emitting atom in the salt is also released and reacts chemically with excess oxygen providing the source of the colored flame. In NATO standard ammunition (including US), the oxidizer salt is usually a mixture of strontium compounds (nitrate, peroxide, etc.) and the metallic fuel is magnesium. Burning strontium yields a bright red light.
Volatile strontium salts impart a bright red color to flames, and these salts are used in pyrotechnics and in the production of flares. [11] Like calcium and barium, as well as the alkali metals and the divalent lanthanides europium and ytterbium, strontium metal dissolves directly in liquid ammonia to give a dark blue solution of solvated ...
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