Synthesis of Strontium Borophosphate, SrBPO5 by Solid State and Hydrothermal Methods and Characterisation

SrBPO5 was synthesized by a solid-state reaction reported and by a new solid state reaction using BPO4 as a phosphating agent. It was also obtained by a hydrothermal method. The structure of the compound was solved by Rietveld analysis before. The examination of X-ray powder diffraction data showed that, SrBPO5 is isostructural with CaBPO5 and BaBPO5. It crystallizes in the trigonal system in P3121 and the refined unit cell parameters are a = 6.8488(1), c = 6.8159(2) Å, Z=3 and Dm 3.77 g/cm3.