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
Xenon nitrate life of seven hours decomposing to XeF. Xenon nitrate Xenon nitrate is a transient compound made by reacting xenon difluoride with anhydrous nitric acid. Although xenon dinitrate (Xe(NO)) has not been isolated and characterised a related mononitrate: xenon fluoride nitrate has been made and studied. Attempted production has used this method: XeF + 2HNO → Xe(NO) + 2HF This reaction made a red-brown solid, that turned blue temporarily as it decomposed spontaneously at 23 °C. However this decomposes rapidly: Xe(NO) → Xe + ONOONO (an unstable nitrogen peroxide) However a mixed nitrate definitely exists FXeONO. This has been called fluoroxenonium