[Synthesis of the new reagent N-hexyl-N'-(sodium aminobenzenesulfonate) thiourea (HXPT) and its spectrophotometric study with Pd2+].
A new reagent N-Hexyl-N'-(sodium aminobenzenesulfonate) thiourea (HXPT) was synthesized. Its structure was also characterized. A new spectrophotometric method of determining Pd2+ was developed based on the new reagent. In the range of pH 5.4-5.8 Pd2+ forms a stable yellow complex with HXPT in the presence of CTMAB,and its apparent molar absorptivity is 2. 21 x 10(5) L x mol(-1) x cm(-1) at the maximum absorption wavelength 296.8 nm. Beer's law is obeyed in the range of 1-7 microg x 25 mL(-1) for Pd2+. This method has been used for the determination of trace Pd2+ in ores and catalyst with satisfactory results.
Ma
D
D
Department of Chemistry, Henan Normal University, 453002 Xinxiang.
Hou
F
F
Cui
F
F
Li
J
J
Wang
Y
Y