Cesium iodide (Cesium iodide) is a colorless crystal or crystalline powder, chemical formula CsI. Deliquescence, sensitive to light. It is easily soluble in water, soluble in ethanol, slightly soluble in methanol, and almost insoluble in acetone. Relative density 4.5. Melting point 621 ℃. The boiling point is about 1280 °C. Refractive index 1.7876. irritating. Toxic, the median lethal dose (rat, intraperitoneal) 1400mg/kg, (rat, oral) 2386mg/kg.
Cesium carbonate is an inorganic compound with the chemical formula Cs2CO3. It is a white solid at room temperature and pressure, easily soluble in water, and absorbs moisture quickly when placed in the air. The aqueous solution of cesium carbonate is strongly alkaline and can react with acid to produce the corresponding cesium salt and water, and release carbon dioxide. Cesium carbonate should be sealed and stored dry, and stored separately from acids.