云南化工Issue(5)：52-54,3.DOI:12.3969/j.issn.1004-275X.2014.05.013
泥磷中 P4的测定
Determination of P4 in Phosphorus Sludge
高宣华 1赵普琇1
作者信息
- 1. 云南天安化工有限公司中心化验室，质量管理部，云南 安宁 650300
- 折叠
摘要
Abstract
The determination of P4 in the phosphorus sludge was studied.At a certain temperature, P4 in the phosphorus sludge was oxidized with concentrated nitric acid,and decomposed into phosphoric acid and metaphosphoric acid,oxiation with sulfuric acid to move HF,NO,NO2 and other impurities,then with a small amount of aqua regia for the further completely metaphosphate oxidation of the small amount meta-phosphoric acid to be phosphoric acid,and then using quinoline phosphomolybdate gravimetric method to measure P4 content.The recoveries were between 99.51 ~100.14,and the precision (RSD)was 0.26.关键词
泥磷/P4/磷酸/重量法Key words
phosphorus sludge/P4/phosphoric acid/gravimetric method分类
化学化工引用本文复制引用
高宣华,赵普琇..泥磷中 P4的测定[J].云南化工,2014,(5):52-54,3.
