chromium oxide

chromium oxide

[′krō·mē·əm ′äk‚sīd]
(inorganic chemistry)
A compound of chromium and oxygen; chromium may be in the +2, +3, or +6 oxidation state.

chromium oxide

A durable green pigment having good alkali resistance; rather expensive and sparingly used.
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Types of pigments: Blacks (carbon black, iron oxide dispersions), Blues (phthalo, alkali, Chinese dispersions), Greens (phthalo, chromium oxide dispersions), Iron Oxides (black iron oxide, red, yellow dispersions), Reds (iron oxide, quinacridone, napthol, toluidine), Yellow and Oranges (diansidine, diarylide, iron oxide, acrylide, ferrite, benzimidazolone dispersions), Whites (titanium dioxide dispersions)
Some materials are so commonplace that it's easy to take them for granted, like the layer of chromium oxide that renders a stainless steel spoon tasteless and prevents it from interfering with the flavors in your soup.
More chromate ions dissolve out of the core, resulting in core-shell structures with a lead sulfate core and a chromium oxide shell.
Other products include FDA-approved color pigments, chromium oxide greens and cobalt blues.
This temperature dependence is due to the fact that at 1050[degrees]C equilibrium is attained between chromium oxide and carbide, so that the oxide is no longer stable and the original protective effect of the oxide layer is lost.
When these coatings are damaged, the hexavalent chromium leaches out of the film into the damaged region where it is reduced, and forms a new trivalent chromium oxide layer that restores protection to the damaged area.
Instead of forming rust (iron oxide) when exposed to water, stainless steel develops a tiny layer of chromium oxide.
Conventional green pigments being used in ceramic industry are based on chromium compounds, chromium oxide in particular, and have hazardous impacts on environment.
69 per cent chromium oxide (refer to Everett Press Release August 19, 2010).
The phase composition of the corrosion products contained a relatively large amount of the spinel, based on the chromium oxide, in comparison with the spinel based on aluminium oxide.
These are unreliable markets producing very low grade chromium oxide," she said.
Examples of components in dryly friction pads Binder Fibers Mineral filler Phenolic resin Steel wool Mica Mela mine resin Brass wool Slate powder Natural rubber Fibre glass Kaolin Basalt fibre Barium sulphate Wcllastonlte Chalk Araroid Oxide Metals Antiseize Zinc oxide Iron Graphite Magnesium oxide Copper Sulphite Feric oxide Zinc Coke Chromium oxide Brass Aluminium oxide Bronze Silicon oxide