六偏磷酸钠中正磷酸盐的测定方法研究  

Study on the Determination of Orthophosphate in Sodium Hexametaphosphate

作　　者：吕珍 王珏[1] 罗辉 黄清雨 周骏宏[1] 刘斌 潘春瑛 Lyu Zhen;Wang Jue;Luo Hui;Huang Qingyu;Zhou Junhong;Liu Bin;Pan Chunying(Key Laboratory of Phosphorus Chemical Engineering,Qiannan Normal University for Nationalities,Duyun 558000,China)

机构地区：[1]黔南民族师范学院磷化工重点实验室,贵州都匀558000

出　　处：《山东化工》2023年第16期144-146,共3页Shandong Chemical Industry

基　　金：中央引导地方科技发展资金项目(黔科中引地[2022]4019);黔南州科技计划项目(黔南科合工字[2022]14号);黔南州科技计划项目(黔南科合[2022]17号)。

摘　　要：针对有关于六偏磷酸钠性能的测定,特别是六偏磷酸钠含量的测定通用方法局限于磷钼酸喹啉重量法测定五氧化二磷含量,在这些测量方法中,只讨论了总磷含量和非活性磷含量的测定,并没有涉及正磷酸盐含量的测定等的问题,提出一种六偏磷酸钠中正磷酸盐的测定方法,可解决现有六偏磷酸钠性能测定中的不足,通过测定出六偏磷酸钠中正磷酸盐含量,可以对各种不同品牌的六偏磷酸钠进行评价,或者对生产条件影响六偏磷酸钠进行研究及调控。In view of the determination of the properties of sodium hexametaphosphate,especially the determination of sodium hexametaphosphate content,the general method is limited to the determination of phosphorus pentoxide content by quinoline phosphomolybdate grata.In these measurement methods,only the determination of total phosphorus content and inactive phosphorus content are discussed,and the determination of orthophosphate content is not involved.A method for the determination of orthophosphate in sodium hexametaphosphate is proposed,which can solve the deficiency in the existing determination of the properties of sodium hexametaphosphate.By determining the content of orthophosphate in sodium hexametaphosphate,various brands of sodium hexametaphosphate can be evaluated,or the influence of production conditions on sodium hexametaphosphate can be studied and regulated.

关 键 词：六偏磷酸钠 正磷酸盐含量 测定 

分 类 号：TQ126.35[化学工程—无机化工]