STUDYING THE COMPOSITION OF COMPLEXES ON THE BASIS OF PALLADIUM(II), COPPER(II), IRON(III) CHLORIDES AND POLYVINYLPYRROLIDONE

The extraction of americium and europium from acid nitrate solutions by benzene solutions of benzyldibutylamine nitrate (I) and quaternary ammonium salts benzyllauryldimethylammonium nitrate (II) and benzyltrioctylammonium nitrate (III) has been studied. During extraction with I, {(R3NH+)2, Me(NO3)2-5} is formed in the organic phase, extraction with II yields {(R4N+), Me(NO3)-4} and {(R4N+)2, Me(NO3)2-5} is formed during extraction with III. The concentration of nitrate ions does not have an unambiguous effect on the stoichiometry of the extraction. In addition to favouring the formation of the nitrate complexes of Am3+ and Eu3+, which are extracted by amines, nitrate ions also have a nonspecific salting out effect. The changes in the water content in the organic phase in dependence on the concentration of the metal complex suggests that the complex of Eu with II is not hydrated in the organic phase.

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The composition of complexes of type ambn: a modification of the straight-line methods of holme and langmyhr

Analytica Chimica Acta ◽

10.1016/s0003-2670(01)95695-8 ◽

1969 ◽

Vol 47 (2) ◽

pp. 380-385 ◽

Cited By ~ 2

Author(s):

J.A. Thomson ◽

G.F. Atkinson

Keyword(s):

Straight Line ◽

Composition Of Complexes

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Determination of the Composition of Complexes and Their Instability Constant by Calorimetry

Journal of The Electrochemical Society ◽

10.1149/1.2426523 ◽

1967 ◽

Vol 114 (2) ◽

pp. 131 ◽

Cited By ~ 3

Author(s):

William H. Metzger ◽

Abner Brenner ◽

Harry I. Salmon

Keyword(s):

Instability Constant ◽

Composition Of Complexes

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SYNTHESIS, CHARACTERIZATION AND ANTIBACTERIAL STUDIES ON DIVALENT TRANSITION METAL COMPLEXES OF HYDRAZINE WITH ARYL SUBSTITUTED ACETIC ACIDS

Kongunadu Research Journal ◽

10.26524/krj59 ◽

2015 ◽

Vol 2 (1) ◽

pp. 18-23

Author(s):

Manimekalai R ◽

Kalpanadevi K ◽

Anjutha Prabha N ◽

Raina O

Keyword(s):

Metal Ion ◽

Thermal Analyses ◽

Thermal Studies ◽

Single Step ◽

Infrared Spectral ◽

Dta Curves ◽

Final Residue ◽

Monodentate Coordination ◽

Composition Of Complexes ◽

Acetic Acids

Metal phenylacetate Sesquihydrazinate hydrates of the formula M(PhAc)2.1.5N2H4.H2O where M=Co,Ni or Cd and Metal phenoxyacetate Sesquihydrazinate hydrates M(PhOAc)2.1.5N2H4.H2O Where M=Co, Ni , Cd or Mn have been prepared and characterized by analytical, IR spectral and thermal studies. The composition of complexes have been determined by analytical studies. Infrared spectral data indicate that the bidentate bridging by hydrazine molecules and monodentate coordination by carboxylate ions to the cental metal ion. Thermogravimetry (TG) and differential thermal analyses (DTA) in air have been used to study the thermal behaviour of the complexes. The simultaneous TG-DTA curves of all the complexes in air resultedin the formation of respective metal or metal oxide as final residue. These complexes decompose exothermically either in single step or decompose through respective metal carboxylate intermediates. The antibacterial activity of the prepared complexes screened against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and Proteus mirabilis

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