Strontium carbonate a mineral, strontium carbonate is prepared synthetically in one of two manners. First of which is from naturally occurring celestine also known as strontium sulfate (SrSO) or by using soluble strontium salts by the reaction in solution with a soluble carbonate salt (usually sodium or ammonium carbonates). For example if sodium carbonate was used in solution with strontium nitrate: Sr(NO) + NaCO → SrCO + 2 NaNO . The most common use is as an inexpensive colorant in fireworks. Strontium and its salts emit a brilliant red color in flame. Unlike other strontium salts, the carbonate salt is generally preferred
Caesium nitrate Caesium nitrate Caesium nitrate or cesium nitrate is a chemical compound with the chemical formula CsNO. An alkali metal nitrate, it is used in pyrotechnic compositions, as a colorant and an oxidizer, e.g. in decoys and illumination flares. The caesium emissions are chiefly due to two powerful spectral lines at 852.113 nm and 894.347 nm. Caesium nitrate prisms are used in infrared spectroscopy, in x-ray phosphors, and in scintillation counters. It is also used in making optical glasses and lenses. As with other alkali metal nitrates, caesium nitrate decomposes on gentle heating to give caesium nitrite: Caesium also forms two