Manufacture of Precipitated Calcium Phosphate Using By-Product Hydrochloric Acid 利用氯化石蜡副产盐酸制取沉淀磷酸钙
Precipitated and separated phosphate radical with bismuth nitrate, CaO and MgO in filtrate are de-terminated by EGTA-EDTA titrimetry, The method is simpler and more accurate than the traditional one. 用硝酸铋分离磷酸根离子,在滤液中用EGTA-EDTA分别测定氧化钙,氧化镁较之传统方法简便效果好。