Extraction of Cu(II) with decanoic acid into 1-octanol

Yamada, Hiromichi; Suzuki, Shinichi; Tanaka, Motoharu

doi:10.1016/0022-1902(81)80401-0

Cited by 26 publications

(8 citation statements)

References 17 publications

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“…Consequently, the composition of the extracted species is CuL 2 . This result is in accordance with that reported by Yamada et al [27]. Therefore, equations (4) and (6) …”

Section: Analysis Of the Extraction Equilibrium In Polar Solventssupporting

confidence: 93%

“…On the basis of this interpretation, the plausible structure of the monomeric copper laurates CuL 2 in polar solvents may be written as shown in Figure 10. A similar structure was obtained by Yamada et al [27] on the extraction of Copper (II) with decanoic acid into 1-octanol.…”

Section: Analysis Of the Extraction Equilibrium In Polar Solventssupporting

confidence: 67%

“…This result indicated to octahedral geometry coordination of the extracted species [27]. In this study, it was found that two molecules of monomeric lauric acid coordinating with the central Copper ion, water and/or solvent molecules coordinate to copper atoms in place of lauric acid molecules.…”

Section: Analysis Of the Extraction Equilibrium In Polar Solventsmentioning

confidence: 67%

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Solvent Effects on the Extraction of Copper(II) with Lauric Acid

Guerdouh¹

2015

J Thermodyn Catal

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“…Consequently, the composition of the extracted species is CuL 2 . This result is in accordance with that reported by Yamada et al [27]. Therefore, equations (4) and (6) …”

Section: Analysis Of the Extraction Equilibrium In Polar Solventssupporting

confidence: 93%

Section: Analysis Of the Extraction Equilibrium In Polar Solventssupporting

confidence: 67%

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Solvent Effects on the Extraction of Copper(II) with Lauric Acid

Guerdouh¹

2015

J Thermodyn Catal

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“…Figure 4 illustrates the plot of log K ex(22) for benzene against log K ex(20) for 1-octanol. For reference the results for benzoic 20 and decanoic 1,6 acids are also represented. As can be seen from Fig.…”

Section: Correlation Between the 1-octanol And Benzene Systemsmentioning

confidence: 99%

“…[1][2][3][4][5][6][7][8][9][10] The dimerization of copper(II) carboxylates is well known and is one of the important factors for the extraction of copper(II). In a series of investigations on the extraction of copper(II) with decanoic acid using various solvents, the solvent effects on the extraction constant of the dimeric copper(II) decanoate Cu 2 A 4 (HA) 2 in some nonsolvating solvent systems 11 , and the dimerization of monomeric copper(II) decanoate in the alcohol 12 and ketone 13 solvents have been interpreted in terms of the regular solution theory.…”

mentioning

confidence: 99%

Comparison of 1-Octanol with Benzene in the Extraction of Copper(II) with Various Phenylcarboxylic Acids

et al. 1999

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The solvent extraction of copper(II) with 3-phenylpropanoic, 4-phenylbutanoic, and 2-phenylbutanoic acids was carried out using 1-octanol and benzene as solvents at 25˚C and at an aqueous ionic strength of 0.1 mol dm -3 (NaClO4). Each extraction equilibrium for these systems was determined in detail by a slope analysis and curve-fitting method. In the aqueous solution, the formation constants of copper(II) with these phenylcarboxylate anions were potentiometrically determined. The present results have been compared with the previous results for the extraction of copper(II) with phenylacetic acid using 1-octanol and benzene as solvents. Between the partition constants of CuA2 and HA (HA: phenylcarboxylic acid), the following relationship was set up: log KD,CuA2=1.8log KD,HA-1.5 for four kinds of phenylcarboxylic acids in the 1-octanol systems. Although a remarkable difference in the extracted species between the benzene and 1-octanol systems was observed, the extraction constants of dimeric copper(II) species and dimerization constants in these extraction equilibria were found to show a high correlation between the 1-octanol and benzene systems. The dimerization constants of copper(II) carboxylates in the 1-octanol systems increased with the number of carbon atoms in the acids: phenylacetic<3-phenylpropanoic<4-phenylbutanoic 2-phenylbutanoic acids, and the extraction constants of the dimeric species, Cu2A4(HA)2 in the benzene systems decreased in the order: 2-phenylbutanoic>phenylacetic>3-phenylpropanoic>4-phenylbutanoic acids. In the systems using 1-octanol and benzene, 2-phenylbutanoic acid was superior to the other phenylcarboxylic acids as an extractant for copper(II).

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Solvent extraction of some metal ions with di‐2‐methylnonylphosphoric acid into heptane

Wang¹,

Nagaosa²

2002

J of Chemical Tech & Biotech

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Di-2-methylnonylphosphoric acid (HA) as an extractant was investigated for the extraction of divalent metal ions into heptane at an aqueous ionic strength of 0.10 mol dm À3 (NaClO 4 ) and at 25°C. The extraction ability of metal complexes decreased in the order Cd(II) % Mn(II) > Cu(II) > Co(II) > Ni(II). The metal complexes extracted were found to be all monomeric species for these metal ions using a slope analysis method. The curve fitting method was also applied to analyze the types of metal complexes extracted:

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Extraction of Cu(II) with decanoic acid into 1-octanol

Cited by 26 publications

References 17 publications

Solvent Effects on the Extraction of Copper(II) with Lauric Acid

Solvent Effects on the Extraction of Copper(II) with Lauric Acid

Comparison of 1-Octanol with Benzene in the Extraction of Copper(II) with Various Phenylcarboxylic Acids

Solvent extraction of some metal ions with di‐2‐methylnonylphosphoric acid into heptane

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