Terbium Chloride 99.99% has important role as an activator for green phosphors used in colour TV tubes, is also used in special lasers and as a dopant in solid-state devices. Chloride compounds can conduct electricity when fused or dissolved in water. Terbium ‘green’ phosphors (which fluoresce a brilliant lemon-yellow) are combined with divalent Europium blue phosphors and trivalent Europium red phosphors to provide the ‘trichromatic’ lighting technology which is by far the largest consumer of the world's Terbium supply. The other main application is for electronic industry.