Potentiometric investigation of the stability of palladium(II) complex of pralidoxime chloride in aqueous solution.
The formation of a complex between palladium(II) chloride and pralidoxime chloride (PAM-2Cl) has been studied by means of potentiometric pH measurements. The real stability constant of the complex in aqeous medium of ionic strength 0.3 M (KCl) at 25.0 degrees C was log Ks = 7.29. This value was close to that (log Ks = 7.02) obtained previously by spectrophotometric methods after appropriate correction with respect to the corresponding value of the acidic constant of PAM-2Cl (pKca = 8.05), which was also determined under the same experimental conditions.
Karljiković-Rajić
K
K
Faculty of Pharmacy, Institute of Analytical Chemistry, Belgrade, Yugoslavia.
Stanković
B
B
D004355:Drug Stability; D006863:Hydrogen-Ion Concentration; D007202:Indicators and Reagents; D007700:Kinetics; D010165:Palladium / Q000032:analysis* / Q000737:chemistry; D011199:Potentiometry; D011220:Pralidoxime Compounds / Q000032:analysis* / Q000737:chemistry; D012972:Sodium Hydroxide; D012996:Solutions
D007202:Indicators and Reagents; D011220:Pralidoxime Compounds; D012996:Solutions; D012972:Sodium Hydroxide; D010165:Palladium