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化学学报
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化学学报 ›› 1952, Vol. 18 ›› Issue (1): 56-60. 上一篇    下一篇

论文

用磷酸根测定铅法

梁樹權, 盧国儀   

  1. 中国科学院物理化学研究所
  • 投稿日期:1900-02-21 发布日期:2013-06-04

On the Determination of Lead as Normal Phosphate

Shu-Chuan Liang, Kuo-I Lu   

  1. Institute of Physical Chemistry, Academia Sinica
  • Received:1900-02-21 Published:2013-06-04

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本文報告用磷酸根測定鉛重量法的各種適宜條件.溶液的pH值應在6.5至10之間.過剩沉澱劑在溶液中的濃度應為0.00085-0.0033M.沉澱應在650℃-900℃間灼燒之;如在130℃乾燥,則沉澱內的水份不能完全驅盡.均勻沉澱可改善沉澱的性質,並可测定少至5毫克的鉛.如溶液中無銻,則不必加酒石酸.

This comtnwiication reports the results of a study of the gravimetric determination of lead as normal phosphate, known as Vortmann and Bader method(4), which has beer receiitly examined by Hubicki and Rys(2). According to our findings, tartaric acid should be added only when antimony is present. With the addition of tartarc acid unusual large excess of precipitant as suggested by Vortmann and Bader is required for complete precipitation.