Chromium trioxide (redirect from Chromium(VI) oxide)
known as chromium(VI) oxide or chromic anhydride) is an inorganic compound with the formula CrO3. It is the acidic anhydride of chromic acid, and is sometimes...
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paints, inks, and glasses. It is the colorant in "chrome green" and "institutional green." Chromium(III) oxide is a precursor to the magnetic pigment chromium...
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Chromyl chloride (redirect from Chromic acid chloride)
which is unusual for transition metal compounds. It is the dichloride of chromic acid. Chromyl chloride can be prepared by the reaction of potassium chromate...
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which the trioxide is the anhydride. Chromic acid features chromium in an oxidation state of +6 (and a valence of VI or 6). It is a strong and corrosive...
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had also introduced chrome-cobalt "blended" oxide pigments which combined about 70% cobalt-modified iron oxide with 30% chrome oxide into a single coating...
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Hexavalent chromium (redirect from Hex chrome)
Hexavalent chromium (chromium(VI), Cr(VI), chromium 6) is any chemical compound that contains the element chromium in the +6 oxidation state (thus hexavalent)...
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chromium plating, also known as hex-chrome, Cr6+, and chrome(VI) plating, uses chromium trioxide (CrO3, also known as chromic anhydride) as the main ingredient...
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Chromium (section Common oxidation states)
being known. The dark red chromium(VI) oxide CrO 3, the acid anhydride of chromic acid, is sold industrially as "chromic acid". It can be produced by mixing...
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Collins reagent (redirect from Dipyridine chromium(VI) oxide)
Collins reagent is the complex of chromium(VI) oxide with pyridine in dichloromethane. This metal-pyridine complex, a red solid, is used to oxidize primary...
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then be converted to carboxylic acids. For oxidations to the aldehydes and ketones, two equivalents of chromic acid oxidize three equivalents of the alcohol:...
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Chromite (redirect from Chrome iron stone)
primarily of iron(II) oxide and chromium(III) oxide compounds. It can be represented by the chemical formula of FeCr2O4. It is an oxide mineral belonging...
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oxygen atoms. In acid solution the unstable blue peroxo complex Chromium(VI) oxide peroxide, CrO(O2)2, is formed; it is an uncharged covalent molecule, which...
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Chromium compounds (section Common oxidation states)
being known. The dark red chromium(VI) oxide CrO 3, the acid anhydride of chromic acid, is sold industrially as "chromic acid". It can be produced by mixing...
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and chrome green (Cr2O3). Chromium pigments Chrome green (PG17): anhydrous chromium(III) oxide (Cr2O3). Viridian (PG18): hydrated chromium(III) oxide Cr2O3...
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Plating (section Chrome plating)
bath composition. Chrome plating is a finishing treatment using the electrolytic deposition of chromium. The most common form of chrome plating is the thin...
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Potassium dichromate (redirect from Potassium dichromate(VI))
The main use is as a precursor to potassium chrome alum, used in leather tanning. Like other chromium(VI) compounds (chromium trioxide, sodium dichromate)...
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Iron(II,III) oxide, or black iron oxide, is the chemical compound with formula Fe3O4. It occurs in nature as the mineral magnetite. It is one of a number...
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Sodium dichromate (redirect from Sodium dichromate(VI))
polar solvents like acetic acid. For hexavalent chrome plating, chromate is converted to the so-called chromic acid (essentially chromium trioxide) by sulfuric...
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Chromium(III) sulfate (redirect from Chromic sulphate)
the x treatment of respectively anthracene and phenol with chromic acid. A chromium(III) oxide byproduct is generated, which is readily extracted into sulfuric...
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Aldehyde (redirect from Corey-Gilman-Ganem oxidation)
oxidizing agents include potassium permanganate, nitric acid, chromium(VI) oxide, and chromic acid. The combination of manganese dioxide, cyanide, acetic acid...
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enters the bloodstream, it damages blood cells by causing oxidation reactions. This oxidative damage can lead to hemolysis and, ultimately, kidney and...
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Collins, J.C.; W.W. Hess; F.J. Frank (1968). "Dipyridine-chromium(VI) oxide oxidation of alcohols in dichloromethane". Tetrahedron Letters. 9 (30): 3363–3366...
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Pyridinium chlorochromate (redirect from Pyridinium chromic chloride)
toxicity, which it shares with other hexavalent chromium compounds. Oxidation with chromium(VI)-amine complexes Piancatelli, G.; Luzzio, F. A. (2007). "Pyridinium...
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nature of the oxygen atoms in the structure. The oxide ion has an ionic radius of 1.40 Å, molybdenum(VI) is much smaller, 0.59 Å. There are strong similarities...
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Chromium(III) phosphate (redirect from Chromic phosphate)
phosphate is prepared by treating a phosphoric acid solution of chromium(VI) oxide with hydrazine. Hexahydrate chromium phosphate, CrPO4·6H2O, is prepared...
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Polyethylene glycol (redirect from Polyethylene oxide)
industrial manufacturing to medicine. PEG is also known as polyethylene oxide (PEO) or polyoxyethylene (POE), depending on its molecular weight. The structure...
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(2004). Chromium(VI) Handbook. CRC Press. p. 30. ISBN 9780203487969. Riedel, Sebastian; Kaupp, Martin (2009). "The highest oxidation states of the transition...
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aluminum, the dry coating consists mostly chromium(III) oxide Cr 2O 3, or mixed (III)/(VI) oxide, with very little Al 2O 3. Typically the process variables...
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Ammonium dichromate (section Oxidation reactions)
this compound, as in all chromates and dichromates, chromium is in a +6 oxidation state, commonly known as hexavalent chromium. It is a salt consisting...
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interest. Caesium chromate is mainly obtained from the reaction of chromium(VI) oxide with caesium carbonate, wherein carbon dioxide gas is evolved: CrO3(aq)...
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