Growing a Display Crystal of Recycled Potassium Tris(oxalato)ferrate(III) Trihydrate

Junk, Peter Courtney; Bacsa, John; Thomas, Nicholas C.

doi:10.1021/acs.jchemed.1c00776

Cited by 1 publication

(1 citation statement)

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“…The complex was prepared according to a known procedure as reported in the literature [14] by dissolving 5.5 g (0.03 mole) of potassium oxalate monohydrate in 100 cm 3 of water with the aid of a steam bath maintained at 25 O C after which 2.7 g (0.01mole) of iron (III) chloride hexahydrate was then added with stirring. The resulting solution was kept on an ice bath for crystallization and the deposited green crystals were collected by Buchner filtration.…”

Section: Materials and Reagentsmentioning

confidence: 99%

Investigations of the Redox Reactions of Potassium Trisoxalatoferrate(III) with Perchlorate Ion in Acidic Medium: A Kinetic Approach

Ogori, B. O.,

Lohdip, Y. N.,

Gongden, J. J.

et al. 2023

CSIJ

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This study investigated the redox reactions of potassium trisoxalatoferrate(III) trihydrate with perchlorate ion in acid medium. The stoichiometry of the reaction determined by the mole ratio method were observed to be 1:2. The rate of the reaction showed two parallel pathways. The kinetic results showed first order dependence with respect to both oxidant and reductant concentrations and the experimental data are consistent with the rate law: \(\frac{-d\left[\mathrm{Fe}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3{ }^{{ }^{3-}}\right]}{d t}=\left\{a+b\left[\mathrm{H}^{+}\right]\right\}\left[\mathrm{Fe}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3{ }^{3-}\right]\left[\mathrm{ClO}_4^{-}\right]\)where \(\mathrm{a}=0.07 \mathrm{~s}^{-1}\) and \(\mathrm{b}=0.74 \mathrm{dm}^6 \mathrm{~mol}^{-2}\). The effect of added species (Zn2+, Mg2+ CH3COO-, I-, and NO3-) on the rates of the reaction and other kinetic evidence suggest that the reactions occurred by the outer-sphere mechanism. The findings from the study has established baseline kinetic data for the redox reaction of potassium trisoxalatoferrate(III) trihydrate with ClO4- and plausible mechanisms have also been proposed for the reaction system.

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Section: Materials and Reagentsmentioning

confidence: 99%