Investigation of neodymium complex with acid chrome blue K by beta-correction spectrophotometry

The neodymium complex with acid chrome blue K (ACBK) at pH 10 has been stud ied in detail by beta-correction spectrophotometry. The cationic surfactant , cetyltrimethylammonium bromide (CTAB) is useful for increasing the sensit ivity and solubility of ligand and:complex. The characteristic factors of c omplex are calculated, for example, complex ratio and stability constant. R esults show that Nd(ACBK)(3) is formed and its real not apparent molar abso rptivity is the first to be determined as follows : epsilon 520/Nd(ACBK)(3) = 5.54 x 10(4) dm(3) mol-' cm(-1) at pH 10. In addition, the cumulative st ability constant of complex Nd(ACBK)(3) is still computed to be 1.72 x 10(1 6) in ionic strength 0.1 M and at temperature 15 degrees.