Spectrophotometric Studies on Complex Formation with Sulfosalicylic Acid. I. With Iron III

1948 ◽  
Vol 70 (3) ◽  
pp. 1195-1197 ◽  
Author(s):  
Robert T. Foley ◽  
Robbin C. Anderson
Keyword(s):  
Complex Formation ◽  
Sulfosalicylic Acid

Kinetics and Equilibrium of Binding of Fe3+ by a Fulvic Acid: A Study by Stopped Flow Methods

1975 ◽  
Vol 53 (20) ◽  
pp. 2979-2984 ◽  
Author(s):  
Cooper H. Langford ◽  
Tahir R. Khan
Keyword(s):  
Ionic Strength ◽  
Complex Formation ◽  
Fulvic Acid ◽  
Metal Ion ◽  
Equilibrium Constants ◽  
Acid Dissociation ◽  
Stopped Flow ◽  
Solution Ph ◽  
Sulfosalicylic Acid ◽  
Flow Measurements

The first report of a rate of binding of a metal ion (Fe3+) by a soluble fulvic acid is derived from stopped flow measurements. The rate of complex formation is normal in Wilkins' sense and similar to that for sulfosalicylic acid. Dissociation is slow (t1/2 > 10 s). The binding of Fe3+ by the fulvic acid in acid solution, pH = 1–2.5, was investigated by kinetic analysis in which the reaction of free Fe3+ with sulfosalicylic acid was followed by stopped flow spectrophotometry on a time scale short compared to release of Fe3+ by fulvic acid. Conditional equilibrium constants found were 1.5 ± 0.3 × 104 at pH = 1.5 and 2.5, and 2.8 ± 0.3 × 103 at pH = 1.0 at 25 °C (ionic strength 0.1).

The preparation and kinetics of complex formation of hexadimethylsulfoxidovanadium(III) perchlorate

1970 ◽  
Vol 48 (19) ◽  
pp. 2969-2971 ◽  
Author(s):  
Cooper H. Langford ◽  
Fine Man Chung
Keyword(s):  
Complex Formation ◽  
Sulfosalicylic Acid ◽  
Kinetics Of

We report the synthesis of the ion V(DMSO)63+ and kinetics of its reactions with SCN−, sulfosalicylic acid, and 2,2-bipyridine. The complex formation rates show some dependence on the ligand. The value of ΔS≠ found for the reaction with bipyridine is quite negative. A definite mechanistic assignment cannot yet be made.

scholarly journals The Complex Formation between Iron (III) Ion and Sulfosalicylic Acid.

1954 ◽  
Vol 8 ◽  
pp. 266-279 ◽  
Author(s):  
Allan Ågren ◽  
Bertil Nycander ◽  
A. Munthe-Kaas ◽  
Nils Andreas Sörensen
Keyword(s):  
Complex Formation ◽  
Sulfosalicylic Acid
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