• Thumbnail for Chromium trioxide
    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...
    11 KB (810 words) - 21:54, 16 March 2024
  • Thumbnail for Chromium(III) oxide
    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...
    9 KB (840 words) - 05:53, 3 July 2024
  • Thumbnail for Chromyl 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...
    7 KB (380 words) - 20:18, 20 October 2024
  • 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...
    15 KB (1,357 words) - 21:33, 30 October 2024
  • Thumbnail for Chromium(IV) oxide
    had also introduced chrome-cobalt "blended" oxide pigments which combined about 70% cobalt-modified iron oxide with 30% chrome oxide into a single coating...
    10 KB (1,155 words) - 15:19, 10 September 2024
  • Thumbnail for Hexavalent chromium
    Hexavalent chromium (chromium(VI), Cr(VI), chromium 6) is any chemical compound that contains the element chromium in the +6 oxidation state (thus hexavalent)...
    66 KB (7,081 words) - 12:00, 22 October 2024
  • Thumbnail for Chrome plating
    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...
    28 KB (3,356 words) - 12:31, 25 October 2024
  • Thumbnail for Chromium
    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...
    110 KB (11,965 words) - 20:43, 19 October 2024
  • Thumbnail for Collins reagent
    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...
    5 KB (474 words) - 17:12, 28 November 2022
  • Thumbnail for Jones oxidation
    then be converted to carboxylic acids. For oxidations to the aldehydes and ketones, two equivalents of chromic acid oxidize three equivalents of the alcohol:...
    8 KB (924 words) - 20:13, 17 July 2024
  • Thumbnail for Chromite
    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...
    28 KB (3,020 words) - 16:26, 2 November 2024
  • Thumbnail for Chromate and dichromate
    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...
    13 KB (1,230 words) - 13:08, 29 October 2024
  • Thumbnail for Chromium compounds
    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...
    14 KB (1,400 words) - 20:36, 19 December 2023
  • and chrome green (Cr2O3). Chromium pigments Chrome green (PG17): anhydrous chromium(III) oxide (Cr2O3). Viridian (PG18): hydrated chromium(III) oxide Cr2O3...
    9 KB (909 words) - 06:18, 19 August 2024
  • bath composition. Chrome plating is a finishing treatment using the electrolytic deposition of chromium. The most common form of chrome plating is the thin...
    21 KB (2,577 words) - 15:22, 8 September 2024
  • Thumbnail for Potassium dichromate
    The main use is as a precursor to potassium chrome alum, used in leather tanning. Like other chromium(VI) compounds (chromium trioxide, sodium dichromate)...
    20 KB (2,034 words) - 14:56, 4 November 2024
  • Thumbnail for Iron(II,III) oxide
    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...
    23 KB (2,169 words) - 13:28, 16 September 2024
  • Thumbnail for Sodium dichromate
    polar solvents like acetic acid. For hexavalent chrome plating, chromate is converted to the so-called chromic acid (essentially chromium trioxide) by sulfuric...
    9 KB (797 words) - 23:30, 26 October 2024
  • Thumbnail for Chromium(III) sulfate
    the x treatment of respectively anthracene and phenol with chromic acid. A chromium(III) oxide byproduct is generated, which is readily extracted into sulfuric...
    9 KB (620 words) - 17:34, 16 October 2024
  • Thumbnail for Aldehyde
    oxidizing agents include potassium permanganate, nitric acid, chromium(VI) oxide, and chromic acid. The combination of manganese dioxide, cyanide, acetic acid...
    30 KB (3,075 words) - 03:27, 5 November 2024
  • enters the bloodstream, it damages blood cells by causing oxidation reactions. This oxidative damage can lead to hemolysis and, ultimately, kidney and...
    14 KB (1,486 words) - 11:16, 28 January 2024
  • Thumbnail for Sarett oxidation
    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...
    8 KB (845 words) - 12:43, 19 December 2023
  • Thumbnail for Pyridinium chlorochromate
    toxicity, which it shares with other hexavalent chromium compounds. Oxidation with chromium(VI)-amine complexes Piancatelli, G.; Luzzio, F. A. (2007). "Pyridinium...
    10 KB (780 words) - 18:59, 14 July 2024
  • Thumbnail for Molybdate
    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...
    15 KB (1,764 words) - 15:28, 17 September 2024
  • Thumbnail for Chromium(III) phosphate
    phosphate is prepared by treating a phosphoric acid solution of chromium(VI) oxide with hydrazine. Hexahydrate chromium phosphate, CrPO4·6H2O, is prepared...
    15 KB (1,667 words) - 08:22, 27 April 2024
  • Thumbnail for Polyethylene glycol
    industrial manufacturing to medicine. PEG is also known as polyethylene oxide (PEO) or polyoxyethylene (POE), depending on its molecular weight. The structure...
    38 KB (4,086 words) - 23:17, 23 October 2024
  • (2004). Chromium(VI) Handbook. CRC Press. p. 30. ISBN 9780203487969. Riedel, Sebastian; Kaupp, Martin (2009). "The highest oxidation states of the transition...
    5 KB (383 words) - 16:40, 21 December 2023
  • Thumbnail for Chromate conversion coating
    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...
    15 KB (1,790 words) - 07:41, 20 August 2024
  • Thumbnail for Ammonium dichromate
    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...
    12 KB (1,069 words) - 16:40, 15 September 2024
  • Thumbnail for Caesium chromate
    interest. Caesium chromate is mainly obtained from the reaction of chromium(VI) oxide with caesium carbonate, wherein carbon dioxide gas is evolved: CrO3(aq)...
    5 KB (390 words) - 20:50, 12 May 2024