Incorporation Solvation With Cloud Point Extraction Method for Separation and Spectrophotometric Determination of Cerium (III) SHAWkET kADHIM JAWAD1, MOUSA OMRAN kADHIM and ALAA SALEH ALWAN

Through joined two sensitive methods solvation and cloud point extraction separated and determined micro amount of Ce(III) from aqueous solutions by using organic reagent 2,4-Dimethyl pentan-3-one (2,4-DMP) as extractant and non-ionic surfactant 1% TritonX-100 , the experimental study shows the solvation species of Ce+3 extracted into cloud point layer (CPL) have a wavelength for maximum absorbance was lmax =29 5nm and the laboratory experiments appear needed as optimum concentration of salting out KNO3 was 0.6 M in the presence 100μg Ce +3/10 mL and 1x10-4 M (2,4-DMP) so that 0.5 mL at % tritonX-100 as well as after heating the solution at 90C° for 15 minutes the study involved effect of different kind and concentration of salting out , and interferences so that effect of different organic reagent as extractants, also stoichiometry study demonstrated the more probable structure of solvation extracted species was 1:1 2,4-DMP: Ce(NO3)3 with spectrophotometric determination. keywords: Cerium(III) , Solvation method, Cloud point extraction method, Preconcentration, Salting out agent.