【摘要】 本文报道了硝酸铅沉淀滴定测定磷酸二氢钾中磷的分析方法。本方法精密、准确、简单易行。沉淀物用化学分析法确定为PbCl₂[Pb₃（Po₁）2]2·H₂O,并提供了X射线衍射实验数据作证。此种磷酸氯化铅复盐尚属首次发现,此前未见诸文献。更多还原

【Abstract】 This article describes an analytical method for the determination of phosphorus inKH₂PO₄ by preeipitation titration with Pb（NO₃）₂ as the titrant. This method is precise, accurate and easy to operate. The composition of the precipitate is detesmined as PbCl₂[Pb₃（PO₄）₂]₂·H₂O by chemical analyses and confirmed by the X-ray diffraction pattern. This kind of double salt of lead has not yet been reported before.更多还原