Kinetics of ligand exchange reactions of lead and copper complexes of ethylenedinitrilotetraacetate and propylenedinitrilotetraacetate

Carr, James D.; Torrance, K. E.; Cruz, Calvin J.; Reilley, Charles N.

doi:10.1021/ac60256a012

Cited by 28 publications

(5 citation statements)

References 21 publications

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“…The quantity A can be shown by substitution of Equation 6and then 4 into Equation 8to be equal to the inverse of the conditional stability constant of sodium-CyDTA. [CyDTA] = 0.112M each of six points in the region of 130-200% titrated on each of the titration curves shown in Figure 1.…”

Section: Resultsmentioning

confidence: 99%

Complexometric titration for the determination of sodium ion

Carr¹,

Swartzfager²

1970

Anal. Chem.

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Section: Resultsmentioning

confidence: 99%

Complexometric titration for the determination of sodium ion

Carr¹,

Swartzfager²

1970

Anal. Chem.

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“…Analytical chemists rarely pay proper attention to this aspect when the mechanism of analytical reactions is discussed. It has been suggested that during the spectrophotometric determination ofniobium with 1- Mixed complexes also play an important part in Iigand exchange 17 and dissociation processes. The formation of mixed Iigand complexes in catalytic reactions is probably a much more general phenomenon than is at present supposed.…”

Section: Enhancement Of Chemical Individuality Of Similar Elementsmentioning

confidence: 99%

The analytical chemistry of mixed ligand complexes

Alimarin¹,

Shlenskaya²

1970

Pure and Applied Chemistry

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Mixed ligand complexes are characterized by their extreme stability. The chemical individuality of the central atom displays itself clearly, and peculiarities in extractions with organic solvents may be observed. Such properties open new routes to the solution ofvarious theoretical and practical problems in analytical chemistry; true mechanisms and kinetics of analytical reactions can be elucidated and the selectivity and sensitivity of analytical methods can be improved.The process of complex formation and the properties of mixed complex compounds containing inorganic ligands are considered with reference to the platinum group elements. The formation of mixed complexes containing organic and inorganic ligands sometimes determines the mechanism of the analytical reaction and the composition of the end product; examples of such interaction are given. The sensitivity and selectivity of analytical methods can be improved by means of the formation of complex compounds of the ionassociate type, and unusual methods of separation and group concentration can be achieved. The study of mixed chelates has developed in two directions: (a) studies of improved extractability (synergy), and coextraction of elements as mixed chelates; and (b) studies of changes in the physicochemical properties of systems, e.g. absorbance and fiuorescence. Various new analytical procedures are discussed.

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“…, presumably because the sterics of the methyl group of 1,2-PDTA slow the formation of the final lead complex (283,284).…”

Section: Fundamental Chemistry Of Lead(ii) 61mentioning

confidence: 99%