The Influence of Benzotriazole and Tolyltriazole on the Copper Electrodeposition on Polycrystalline Platinum from Acidic Chloride Solutions

2000 ◽  
Vol 147 (5) ◽  
pp. 1758 ◽  
Author(s):  
Mieczyslaw Scendo ◽  
Jan Malyszko
Keyword(s):  
Copper Electrodeposition ◽  
Chloride Solutions ◽  
Polycrystalline Platinum ◽  
Acidic Chloride

Electrolytic reduction of Eu(III) to Eu(II) in acidic chloride solutions with titanium cathode

1995 ◽  
Vol 26 (1) ◽  
pp. 1175-1181 ◽  
Author(s):  
Tetsuji Hirato ◽  
Hiroshi Kajiyama ◽  
Hiroshi Majima ◽  
Yasuhiro Awakura
Keyword(s):  
Electrolytic Reduction ◽  
Chloride Solutions ◽  
Acidic Chloride ◽  
Titanium Cathode

scholarly journals Separation Studies of Pd(II) from Acidic Chloride Solutions of Pt(IV), Ni(II) and Rh(III) by Using 4-Aroyl-3-Phenyl-5-Isoxazolones

2012 ◽  
Vol 9 (2) ◽  
pp. 756-765
Author(s):  
Koduru Janardhan Reddy ◽  
Kap Duk Lee
Keyword(s):  
Metal Ions ◽  
Water Samples ◽  
Liquid Extraction ◽  
Selective Separation ◽  
Extraction Mechanism ◽  
Chloride Solutions ◽  
Liquid Liquid Extraction ◽  
Separation Factors ◽  
Acidic Chloride ◽  
Synthetic Water

This study examined the effect influence of various factors on the extraction of Pd(II) to develop a new liquid-liquid extraction mechanism for the selective separation of palladium(II) from its acidic chloride solutions using 4-aroyl-3-phenyl-5-isoxazolones (HA), such as 3-phenyl-4-(4-fluorobenzoyl)-5- isoxazolone (HFBPI), 3-phenyl-4-benzoyl-5-isoxazolone (HPBI) and 3-phenyl-4- (4-toluoyl)-5-isoxazolone (HTPI). The extraction strength of Pd(II) with HA were in the following order: HFBPI > HPBI > HTPI, which is opposite to that observed with their pKavalues. HPBI was used to separate Pd(II) from Pt(IV), Ni(II) and Rh(III) metal ions and calculated their separation factors (S.F.) were followed in the order: Pd/Ni (40±0.4) > Pd/Pt (25±0.2) > Pd/Rh (15±0.3 > Rh/Ni (2.7±0.3) > Pt/Ni ≈ Rh/Pt (1.7±0.2). The loading and striping of Pd(II) (1.12×10-4mol L-1) were also examined using 1.0×10-3mol L-1HPBI in CHCl3and 1.0 mol L-1HCl, respectively. The results demonstrated that the maximum (97.5%) extraction and desorption (89%) of metal required at least 3.0 cycles. The developed method was applied successfully to the separation of palladium from synthetic water samples.

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