Formation of antimony polyphosphate using Sb2O3 and/or (NH4)2HPO4 and NH4H2PO4 as starting materials has been simulated by thermal analysis technique. The elimination of water and ammonia molecules induced by heating leads to the formation of intermediate ammonium polyphosphate, which subsequently reacts with Sb2O3. Morphologically, vitreous Sb(PO3)3 is composed of plaques having irregular shapes. Infrared spectra and NMR study is consistent with tetrametaphosphate anion arrangement. The compound is thermally unstable and may be recommended as a donor of -O-P-O- linkers in the preparation of special phosphate glasses.
通过热分析技术模拟了使用
Sb2O3 和/或 (NH4)2HPO4 和
NH4H2PO4 作为起始原料形成聚
磷酸锑。加热引起的
水和
氨分子的消除导致形成中间体聚
磷酸铵,随后与 反应。从形态上看,
玻璃体Sb(PO3)3由形状不规则的斑块组成。红外光谱和核磁共振研究与四
偏磷酸阴离子排列一致。该化合物热不稳定,可推荐作为特殊
磷酸盐
玻璃制备中 -O-P-O- 连接基的供体。