Potassium Selenocyanate - Guram - - Major Reference Works.
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A new method for the speciation analysis of selenite (Se-IV), selenate (Se-VI), and selenocyanate (SeCN -) is described and first results are presented on the distribution of these species in wastewater samples from a Brazilian oil refinery plant.
Analysis and examples of attenuated vaccines.. The impact of selenocyanate on cancer cells.. The closing section of your essay should summarize the course of the research and tell whether the study managed to answer the research questions or not. It should also point to a direction for further research for other scholars.
The reagents studied included potassium seleno-cyanate, methyl selenocyanate and benzyl selenocyanate, as well as sodium selenite (reference compound). Compared to p -XSC, which has a chemopreventive index of 4.0, the other four compounds have a lower index ranging from 1.3 for sodium selenite and potassium selenocyanate to 2.0 for methyl selenocyanate and 2.5 for benzyl selenocyanate.
Application. Increasing interest in solid state NMR of heavy-metal nuclei results in the preparation of several Hg-thiocyanate and selenocyanate compounds as potential models. Bowmaker, G.A. et al. Inorg. Chem. 1998, 37, 1734. Versatile reagent used in selenocyanation, cyclocondensation, and heterocyclization reactions.
Potassium selenocyanate is the inorganic compound with the formula KSeCN. It is a hygroscopic white solid that is soluble in water, decomposing in air to red selenium and potassium cyanide. The compound has been characterized by X-ray crystallography, which confirms that it is a salt. The C-N and C-Se distances are 1.12 and 1.83, respectively, consistent with triple and single bonds.
Selenocyanate was not included in the standard mixture as it decomposes to elemental selenium under the acidic conditions employed. HPLC-ICP-MS analysis of selenium-enriched samples Selenium phytoremediation samples.
The optimal process conditions for maximum selenium and phenol removal were found to be pH 4, 10 ppm selenocyanate, 5 ppm phenol, and 450 ppm EDTA. Findings from the reaction byproducts analysis indicated selenite, selenate, benzenediols, and benzeneseleninic acid as most noted intermediates.
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Synthesis, characterization, crystal structure and thermal analysis of a copper(II) mononuclear compound with 2,6-bis(3,5-dimethyl-N-pyrazolyl)pyridine (bdmpp) and selenocyanate as ligands.
Structure, properties, spectra, suppliers and links for: Selenocyanate.
A simple capillary zone electrophoretic method for the determination of biospherically important oxyanions of selenium (Se) and tellurium and another Se-containing anion, selenocyanate, has been developed. The method uses direct UV absorption detection. Time course experiments with time slices as short as 6 min are possible. This method's detection limits and linear range compare well with.
The structure of vitamin B 12 has been examined by the X-ray analysis of four different crystal structures, air-dried and wet vitamin B 12, the selenocyanate derivative of B 12, and a hexacarboxylic acid prepared by the degradation of the vitamin by Cannon, Johnson and Todd.The analysis turned on the possibility of identifying some of the atomic positions in the molecule in very confused.
The nutritional availability of selenium (Se) is highly dependent on its chemical form because chemical form affects absorption, distribution, metabolism, and excretion. We evaluated the effects of administration route and dose on the bioavailability of nine Se compounds found in biota, the so-called bioselenocompounds, such as selenite, selenate, selenocyanate (SeCN), Se-methylselenocysteine.
The most common speciation techniques that we perform are for arsenic, selenium and mercury speciation as outlined below. We have also developed applications to speciate other metals such as Chromium, Vanadium, Cobalt, Molybdenum, Antimony and Bismuth.
Ligand effects on the bonding mode of the selenocyanate ion in palladium (II) complexes. I.
Inorganic speciation analysis of selenium by ion chromatography-inductively coupled plasma-mass spectrometry and its application to effluents from a petroleum refinery.