フェニルリン酸カルシウム及びフェニルホスホン酸カルシウムの合成と熱的変化
1992 年 100 巻 1160 号 p. 439-443
詳細
1992 年 100 巻 1160 号 p. 439-443
Layered calcium phenylphosphate, Ca2(OH)(O2.5POC6H5)3, and calcium phenylphosphonate, CaO0.5{(HO)2OPC6H5}2⋅2H2O, were prepared by combining aqueous ammonia solutions of sodium phenylphosphate and phenylphosphonic acid and of calcium nitrate, respectively. Thermal changes of calcium phenylphosphate and calcium phenylphosphonate were systematically investigated by thermal analysis, X-ray diffraction and IR spectra. Calcium phenylphosphate decomposed with the two step liberation of phenyl groups at 150°-300°C. In calcium phenylphosphonate, phenyl groups were completely released at 500°C following the dehydration in the two steps at 50°-150°C.
