稀土五磷酸盐晶体作为激光或发光材料正在引起人们的注意.其中五磷酸钕和五磷酸镨均是化学计量比激光材料,五磷酸铈是一种迄今为止余辉最短的闪烁体材料,五磷酸铽能发出较强的绿色萤光.但至今对稀土五磷酸盐晶体的组成分析却无详细报导.Ln P_5O_(14)晶体的化学稳定性好,在许多溶剂中不溶解,一般认为仅能用强碱熔融,而在用碱熔融时 Rare earth pentaphosphate crystals are attracting attention as laser or luminescent materials, of which neodymium pentaphosphate and praseodymium pentachloride are both stoichiometric laser materials, and cerium penta phosphate is a scintillator material with the shortest afterglow. Terbium pentaphosphate Can emit a strong green fluorescence, but so far no detailed report on the composition of rare earth pentaphosphate crystals.Ln P_5O_ (14) crystal chemical stability, in many solvents do not dissolve, generally considered only strong The base melts, but when it is melted with an alkali