The solubility product constant of cerium(Ⅳ) phosphate according to the concentration of phosphate detected by spectrophotometer at pH=0.4 and 20 ℃ were determined. The solubility product constant of cerium(Ⅳ) phos...The solubility product constant of cerium(Ⅳ) phosphate according to the concentration of phosphate detected by spectrophotometer at pH=0.4 and 20 ℃ were determined. The solubility product constant of cerium(Ⅳ) phosphate is 2.915×10 -34. The reliability of determination data is proved by s=0.004 and CV=1.30%. The result indicate that solubility product constant of cerium(Ⅳ) phosphate is effected by temperature and acidity significantly. Therefore, temperature and acidity increase over a particular range could result in an increase of solubility of cerium(Ⅳ) phosphate.展开更多
文摘The solubility product constant of cerium(Ⅳ) phosphate according to the concentration of phosphate detected by spectrophotometer at pH=0.4 and 20 ℃ were determined. The solubility product constant of cerium(Ⅳ) phosphate is 2.915×10 -34. The reliability of determination data is proved by s=0.004 and CV=1.30%. The result indicate that solubility product constant of cerium(Ⅳ) phosphate is effected by temperature and acidity significantly. Therefore, temperature and acidity increase over a particular range could result in an increase of solubility of cerium(Ⅳ) phosphate.
