抄録
Reactions of Pb(NO3)2 and Pb(OH)2 with NH4PO3 were studied within the temperature range of 200-400°C at the molar ratio P2O5: PbO=(1-5):1. Novel binary lead-ammonium polyphosphate PbNH4(PO3)3 was synthesized and identified by chemical analysis and thin-layer chromatography. X-ray diffraction study was performed for powder PbNH4(PO3)3 (monoclinic,the unit cell dimensions are a=14.057(5), b=16.95(1), c=7.194(4) Å;β=104.26(4)°). Thermal decomposition of this phosphate was investigated by complex thermal analysis within the temperature range of 20-1000°C.
