摘要
正磷酸根可和钒钼酸铵形成黄色的磷钒钼黄.可用过硫酸铵和硫酸将多聚磷酸全部转化成正磷酸根,再用分光光度法测定其质量分数.该方法快速、简便,适合生产过程中多聚磷酸的质量分数分析.
Orthophosphoric radicals form yellow ＂phosphovanadomolybdate yellow＂ with ammonium vanadomolybdate. Ammonium persulfate and sulfuric acid were used to turn completely the polyphosphoric acid into orthophosphoric radicals, which were then determined by spectrophotometry, This method is rapid and simple. and is suitable for the polyphosphoric acid test during the production.
出处
《印染助剂》
CAS
2007年第6期44-45,共2页
Textile Auxiliaries
关键词
多聚磷酸
分光光度法
新方法
polyphosphoric acid
spectrophotometry
new method
