What are the applications of promethium?

Element Promethium (Pm), Group 19, Atomic Number 61, f-block, Mass [145]. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. read more

Practical applications exist only for chemical compounds of promethium-147, which are used in luminous paint, atomic batteries and thickness measurement devices, even though promethium-145 is the most stable promethium isotope. read more

Promethium chloride was mixed with phosphors that glow yellowy-green or blue when radiation hits them. However, as the dangers of the element's radioactive properties became apparent, this too was dropped from the domestic glow-in-the-dark market, only used now in specialist applications. read more

Promethium is a rare-earth metal that emits beta radius. It is very radoiactive and rare, so it is little studied: its chemical and physical properties are not well defined. Promethium salts have a pink or red colour that coluors the surroundings air with a pale blue-green light. read more