Cesium carbonate is a versatile base in organic synthesis.
Cesium fluoride is a fluorination agent for halide exchange reactions. It is a versatile base in organic synthesis and can be used in e.g. in polymerization reactions or in brazing fluxes.
Cesium hydroxide solution is used in industrial catalysis. Cesium acts as a promoter e.g. in the production of polyols.
Cesium acetate is useful in organic synthesis. Yields in a Perkin reaction are for example 2- to 9-fold higher as compared to the classic sodium acetate route: E. Koepp, F. Vögtle; Synthesis (1987) 177.
Cesium chloride is used in organic synthesis and in titanium dioxide manufacturing processes.
Cesium nitrate is used as promoter in heterogeneous catalysts (e.g. methylmethacrylic acid production) and in pyrotechnics.