Results 311 to 320 of about 1,130,858 (355)
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Reduction of chromate in cement by iron sulfate
Contact Dermatitis, 1979Cement dermatitis is connected with chromate sensitivity. It can therefore be expected that “elimination” of chromate in cement would decrease the number of cases of cement dermatitis.Iron sulfate added to cement reduces the chromate completely and the 3‐valcnl chromium is precipitated. An amount of 0.35 % (w/w) iron sulfate, FeSO4.
S, Fregert, B, Gruvberger, E, Sandahl
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Iron Catalysis in Reduction and Hydrometalation Reactions
Chemical Reviews, 2018The last two decades have seen an impressive improvement of the use of iron as a fascinating and valuable alternative transition metal in homogeneous catalysis in terms of sustainability and economy. It was efficiently used in catalytic organic synthetic transformations, which in particular include the reduction of unsaturated bonds.
Duo Wei, Christophe Darcel
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Reduction of iron by extracellular iron reductases: implications for microbial iron acquisition
Archives of Biochemistry and Biophysics, 2002The extracellular enzymatic reduction of iron by microorganisms has not been appropriately considered. In this study the reduction and release of iron from ferrioxamine were examined using extracellular microbial iron reductases and compared to iron mobilization by chemical reductants, and to chelation by EDTA and desferrioxamine.
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Electrocatalytic Reduction of ROOH by Iron Porphyrins
Journal of the American Chemical Society, 2004Electrocatalytic reduction of a series of chemical oxidants of different power (tert-butyl hydroperoxide, potassium peroxomonosulfate, peracetic acid, and m-chloroperbenzoic acid) at iron-porphyrin-modified graphite electrodes is studied in buffered aqueous solutions by rotating disk and ring-disk voltammetry.
James P, Collman +3 more
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Metallurgical Transactions, 1972
The internal reduction of high-grade granular hematite ore in hydrogen and carbon monoxide, and also the internal oxidation of porous iron granules in CO2-CO mixtures have been investigated. To assist the interpretation of the rate data for porous iron and iron oxides, rate measurements have been made also with dense wustite, previously grown on iron ...
E. T. Turkdogan, J. V. Vinters
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The internal reduction of high-grade granular hematite ore in hydrogen and carbon monoxide, and also the internal oxidation of porous iron granules in CO2-CO mixtures have been investigated. To assist the interpretation of the rate data for porous iron and iron oxides, rate measurements have been made also with dense wustite, previously grown on iron ...
E. T. Turkdogan, J. V. Vinters
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Reductive denitrification using zero‐valent iron and bimetallic iron
Environmental Technology, 2009A study of reductive denitrification of nitrate was conducted. Microscale zero-valent iron (ZVI) and palladium-coated iron (Pd/Fe) were used in the reduction of nitrate with variable pH. The solution pH was controlled by an auto controlling system instead of chemical buffers.
Jeong-Hak, Choi +3 more
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Research of Iron Reduction and the Iron Reductase Localization of Anammox Bacteria
Current Microbiology, 2014The iron-reducing capability of anammox bacteria was examined in this study using Percoll purified anammox bacteria. Anammox bacteria could reduce Fe(III) to Fe(II) with organic matters as the electron donor. The activity of anammox iron-reducing process was dependent on different electron donor, acceptor and pH.
Ran, Zhao +4 more
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Iron Promoted Reduction of Chromate by Dissimilatory Iron-Reducing Bacteria
Environmental Science & Technology, 2000Chromate is a priority pollutant within the U.S. and many other countries, the hazard of which can be mitigated by reduction to the trivalent form of chromium. Here we elucidate the reduction of Cr(VI) to Cr(III) via a closely coupled, biotic-abiotic reductive pathway under iron-reducing conditions.
B, Wielinga +3 more
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Iron-Mediated Hydrazine Reduction and the Formation of Iron-Arylimide Heterocubanes
Inorganic Chemistry, 2011The reaction of Fe(N{SiMe(3)}(2))(2) (1) with 1 equiv of arylthiol (ArSH) results in material of notional composition Fe(SAr)(N{SiMe(3)}(2)) (2), from which crystalline Fe(2)(μ-SAr)(2)(N{SiMe(3)}(2))(2)(THF)(2) (Ar = Mes) can be isolated from tetrahydrofuran (THF) solvent.
Michael J, Zdilla +2 more
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Iron-chelating agents and the reductive removal of iron from transferrin
Biochemical Pharmacology, 1980Abstract 2-Formylpyridine thiosemicarbazone, a strong iron (II) and iron(III)-chelating agent, removed iron from transferrin only under reductive conditions. The reaction required a bicarbonate-labilizing anion such as nitrilotriacetate in order for reduction and release of iron to the thiosemicarbazone to occur.
E, Ankel, D H, Petering
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