The dielectric relaxation of V₂ 0₅ was investigated using the method of Davidson and Cole. By means of an Argand diagram, deviation from an exact Debye dielectric was established. This was done with the parameter β. For a Debye dielectric β= 1. The largest value of β for V₂O₅ was...
Contaminant transport in ground water is an important environmental process that
affects a host of natural systems. Transport of contaminants is affected by many
processes, including aqueous complexation, adsorption, and redox reactions. One of the
most important components of an aquifer that controls transport is iron-oxide. In this
study, the...
A new pulse method for measuring differential double layer
capacitances has been developed in this work. The technique is based
on the determination of the cell time constant which, for an ideally
polarized test electrode-solution interface, is composed of the double
layer capacitance and solution resistance. By applying small step...
The rate of removal of benzene, toluene, ethylbenzene and the xylene isomers (BTEX) from contaminated groundwater is needed to design remediation processes. Benzylsuccinic acid (BSA) and methyl-benzylsuccinic acid (methyl BSA) are unambiguous metabolites of anaerobic BTEX biodegradation. An analytical method for quantitative determination of BSA in groundwater samples was developed....
The electrochemistry of cadmium at a Reticulated Vitreous
Carbon (RVC) electrode has been studied to determine the suitability of
RVC as a working electrode for the electrochemical preconcentration of
cadmium in the corrosive environment of zirconium dissolved in
hydrofluoric acid.
The electrochemistry in this investigation deals with deposition
of solid...
The distribution of hydrophobic ionogenic organic compounds
(HIOC's) between aqueous and nonaqueous phases has been
investigated. The HIOC's are aniline and methyl substituted
anilines. The aqueous phases are methanol-water mixed solvents with
varying pH and ionic strength. The nonaqueous phases are silica and
alkyl derivatized silica with ethyl- (C-2), octyl-...
Hydrated cobalt(II) and nickel(II) trifluoromethanesulfonates have
been prepared by a previously reported procedure, and have been
characterized for the first time as [ Co(H₂O)₆] (CF₃SO₃)₂H₂O and [Ni(H₂O)₆] (CF₃SO₃)₂. These formulations are based on analyses,
near-infrared spectra, and on measurements of the ligand field
electronic spectra and the magnetic susceptibilities. The...