无臭。溶于水和稀氢氟酸，不溶于乙醇、乙醚和氨水,有刺激性。 钠、铱、钛、锆和过氯酸盐的分析， 钙还原制备金属铷的原料及制备其它铷盐和同位素分离的原料。 Rubidium chloride (RbCl) may be used: · as a non invasive biomarker. · to modify coupling between circadian oscillators via reduced photaic input to suprachiasmatic nuclei. The study was conducted on hamsters. · A RbCl layer inserted inside an electron transport layer (ETL), tris (8-hydroxyquinoline) aluminum (Alq3) can act as a multilayer organic light-emitting diode (OLED.