The stability constants of the aqueous chloro complexes of divalent zinc, cadmium and mercury determined by solvent extraction with tri-n-octylphosphine oxide

1980 ◽  
Vol 6 (1-2) ◽  
pp. 3-12 ◽  
Author(s):  
Taichi Sato ◽  
Takato Nakamura
Keyword(s):  
Solvent Extraction ◽  
Stability Constants ◽  
Chloro Complexes ◽  
Zinc Cadmium ◽  
The Stability

Studies on the solvent extraction of metal dithiocarbamates

1969 ◽  
Vol 47 (12) ◽  
pp. 2320-2323 ◽  
Author(s):  
Vedula S. Sastri ◽  
Keijo I. Aspila ◽  
Chuni L. Chakrabarti
Keyword(s):  
Solvent Extraction ◽  
Stability Constants ◽  
Divalent Metal ◽  
Divalent Metal Ions ◽  
Extraction Constants ◽  
Overall Stability ◽  
Stability Constants Of Complexes ◽  
Dithiocarbamic Acid ◽  
The Stability ◽  
Metal Dithiocarbamates

Studies on the solvent extraction of morpholine dithiocarbamic acid complexes of divalent metal ions Mn, Fe, Co, Ni, Cu, Zn, Pb, Cd, Hg, and Sn were carried out, and the extraction constants and the overall stability constants were determined. The stability constants of complexes of Cu(II) formed with various substituted dithiocarbamic acids, showed a variation of the stability constants with the basicity of the nitrogen and sulfur atoms in the reagents.

Europium tartronate and mandelate ion association in water

1967 ◽  
Vol 45 (14) ◽  
pp. 1643-1647 ◽  
Author(s):  
P. G. Manning
Keyword(s):  
Ionic Strength ◽  
Solvent Extraction ◽  
Stability Constant ◽  
Stability Constants ◽  
Ion Association ◽  
Tridentate Ligand ◽  
Radiotracer Method ◽  
The Stability ◽  
Two Stages ◽  
Low Ionic Strength

Stepwise stability constants have been determined for the 1:1 and 1:2 Eu3+:mandelate− and Eu3+:tartronate2− complexes in water. Measurements were made at low ionic strength and the temperature was 25 °C. The solvent-extraction–radiotracer method was used.For the mandelate system at an ionic strength of 0.104, K1 = 5.0 × 102, K2 = 1.58 × 102, and K1:K2 = 3.1. The K1:K2 ratios suggest monodentate ligandcy.The stepwise stability constants for the two stages of tartronate ion association are: K1 = 7.1 ( ± 15%) × 104 and K1K2 = 4.2 ( ± 5%) × 108. The magnitudes of the stability constants suggest that tartronate is a tridentate ligand. The stability constant ratios are discussed with reference to the ratios for piperidinedicarboxylate and iminodiacetate complexes.

Study of nitrate complex formation with trivalent Pm, Eu, Am and Cm using a solvent extraction technique

2004 ◽  
Vol 92 (12) ◽  
Author(s):  
Sofie Andersson ◽  
C. Ekberg ◽  
J-O. Liljenzin ◽  
M. Nilsson ◽  
G. Skarnemark
Keyword(s):  
Solvent Extraction ◽  
Complex Formation ◽  
Nuclear Fuel ◽  
Stability Constants ◽  
Spent Nuclear Fuel ◽  
Aqueous Media ◽  
Separation Process ◽  
Nitrate Complex ◽  
The Stability ◽  
Solvent Extraction Technique

SummaryThe separation of actinides and lanthanides is an important question in the treatment of spent nuclear fuel in the transmutation concept. To find an efficient and well functioning separation process it is necessary to study the chemistry of the elements in the two groups in different aqueous media. The stability constants of the nitrate complex formation with Pm, Eu, Am and Cm were determined using solvent extraction. The extraction was studied using the synergistic system of 2,6-bis-(benzoxazolyl)-4-dodecyloxylpyridine and 2-bromodecanoic acid in

Complex Formation in Molten Salts Studied by Distribution Methods

1963 ◽  
Vol 18 (7) ◽  
pp. 840-842 ◽  
Author(s):  
J. O. Liljenzin ◽  
H. Reinhardt ◽  
H. Wirries ◽  
R. Lindner
Keyword(s):  
Complex Formation ◽  
Stability Constants ◽  
Molten Salts ◽  
Chloro Complexes ◽  
Complex Constant ◽  
The Stability

With a distribution technique described earlier the stability constants of cadmium-chloro complexes were evaluated. The values obtained are practically identical with those obtained by other authors with polarographic methods with the exception of the first complex constant which was found to be considerably higher (832) than that described in the literature (200).

Stability constants of technetium(IV) oxalate complexes as a function of ionic strength

2006 ◽  
Vol 94 (3) ◽  
Author(s):  
Yuanxian Xia ◽  
Nancy J. Hess ◽  
Andrew R. Felmy
Keyword(s):  
Ionic Strength ◽  
Solvent Extraction ◽  
Stability Constants ◽  
Extraction Method ◽  
Solvent Extraction Method ◽  
Oxalate Complexes ◽  
The Stability

SummarySolvent extraction method was used to determine the stability constants of Tc(IV) with oxalate anions in NaCl solutions ranging in concentration from 0.5 M to 2.0 M. All experiments were conducted in an atmosphere-controlled chamber under Ar atmosphere (<1.0 ppm O

Sign in / Sign up

Export Citation Format

Share Document