The technique of permanganic etching reveals lamellar detail in polyethylene and other polyolefines allowing representative melt-crystallized morphologies to be studied with the electron microscope. When etching with the original recipe is prolonged artefacts on a scale of ∼ 10 μm can develop ...

The selective isolation of manganese by distillation as permanganic acid was investigated. Contamination from Fe, Cr and Co was negligible. It was found possible to isolate carrier-free 54Mn from cyclotron-irradiated iron targets. The time needed for the distillation was about 15 min with yields...

Unsupported and ψ-alumina supported MnOx catalysts (1–10 wt-% Mn) were preparedfrom aqueous solutions of HMnO4 and compared with nitrate based samples. They were characterized by XRD, XPS, BET area, oxygen storage capacity and by their catalytic behaviour versus ammonia DeNOx reaction. The uns...

Atomic force microscopy (AFM) has been used to examine the 3D profile of some permanganically etched metallocene catalysed high-density polyethylenes. Banded spherulites were observed with an asymmetric band radial profile, having a characteristic shape with specific ‘inner’ and ‘outer’ band...

Cupronickel alloys are used as heat exchanger tube materials in nuclear power plant auxiliary coolant systems. In this work, the corrosion behaviour of cupronickel (70:30) alloy in permanganic acid medium was studied. Corrosion rate was found to follow logarithmic kinetics. Cyclic polarization s...

Chromating is applied on hot-dip galvanized (HDG) steels in order to improve the protective action of metallic zinc coatings. In this study the influence of chromating on the corrosion resistance of zinc coating is investigated with the scanning Kelvin probe (SKP), XPS and AES surface analysis t...

Ozone is an effective oxidant and disinfectant commonly used for elimination of micropollutants and inactivation of resistant microbes. However, undesirable oxidation/disinfection byproducts such as bromate might form during ozonation. In this study, the UV absorbance and fluorescence indices we...

ObjectiveMercury is a dangerous industrial and environmental pollutant which induces severe damage in diverse organs in animal and humans. The aim of this study was to investigate the protective effect of rutin (50 and 100 mg/kg body weight) against mercuric chloride (HgCl2) (1.23 mg/kg b.w.) to...

Uniform nanocrystalline LaVO4: Eu nanorods have been successfully prepared through a simple solution based hydrothermal process using catechin hydrate as a ligand. Thermogravimetric, CHN, and zeta potential analysis confirmed the coating of catechin hydrate on the surface of LaVO4. The use of Eu...

In this study, we used Silica/polyvinyl imidazole core-shell nanoparticles impregnated with sodium dihydrogen phosphate (SiO2/PVI/H2PO4− NPs) for adsorption of samarium and dysprosium ions from aqueous solutions. The effects of the pH, adsorbent dose, contact time, and initial concentration of t...

A lanthanum-containing polyoxometalate (POM) of DA11[La(PW11O39)2] (denoted as DA-La(PW11)2; DA = Decyltrimethylammonium cation) is highly efficient and selective for oxidation of various substrates including alkenes, alkenols, sulfides, silane and alcohol with only one equiv. H2O2 as oxidant at...

Lanthanum ferrite nanoparticles (LaFeO3 NPs) with light absorption properties in the visible region were successfully synthesized in CTAB (cetyltrimethyl ammonium bromide) emulsion nanoreactors at room temperature. The morphology, size, structure, elemental composition, and optical properties of...

The objective of this study was to determine the influence of different operational variables on fluoride (F−) removal from waters using lanthanum (La)-doped silica xerogels and the mechanisms involved in this process. Accordingly, four xerogels were synthesized, one acting as blank (X-B), two d...

The crystallization of ammonium perchlorate from a methanol/water solution confined to native and organically modified silica nanopores is analyzed by differential scanning calorimetry. The effects of nanoconfinement on the salt crystallization are primarily due to the surface interactions with ...

A procedure for drying the deep eutectic solvent (DES) choline chloride - ethylene glycol, ChCl-EG (1:2), based on the use of molecular sieves has been developed, being the final water content of the electrolyte 145 ± 5 ppm. In this dried DES, the stability of InCl and InCl3 as well as the elec...

Indium(I)chloride reacts with LiArMe6 (ArMe6 = C6H3-2,6-(C6H2-2,4,6-Me3)2) in THF to give three new mixed-valent organoindium subhalides. While the 1:1 reaction of InCl with LiArMe6 yields the known metal-rich cluster In8(ArMe6)4 (1), the use of freshly prepared LiArMe6 led to incorporation of i...

Indium, a Group IIIA element of the periodic chart and a rare earth metal characterized by high plasticity, corrosion resistance, and a low melting point, is widely used in the electronics industry where released streams can contaminate the environment. Consequently, indium can reach humans main...

Pure magnesium reveals a previously unreported combination of enhanced anodic kinetics and unaltered cathodic kinetics in 0.1 M sodium chloride in the presence of 1 mM indium chloride. The corrosion potential of magnesium is lower than the electrode potential for indium/indium (+3) ions equilibr...

In this paper, the electrochemical reduction of indium on a glassy carbon electrode (GCE) in a chloride electrolyte in the presence of tetrabutylammonium chloride (TBACh) was studied using the rotating disk electrode method, chronoamperometry and scanning electron microscopy. It was found that t...

The structures of the N,N′-dimethylpropyleneurea (DMPU) solvated gallium(III) and indium(III) ions have been determined in DMPU solution by means of EXAFS. The gallium(III) ion is five-coordinate with a mean Ga–O bond distance of 1.924(5) Å, while the larger indium(III) ion is octahedrally coo...