![]() ![]() This new cleaner process promises advancement for industrial production is based on the 3Rs principle.Ĭhromic oxide is quite stable and is used as a green pigment in paints, inks, and glasses for its stability. Since the traditional process used for chromic oxide production discharges large quantities of solid waste and has low energy efficiency, a cleaner process is developed by the Chinese Academy of Sciences in Beijing. (NH 4 ) 2 Cr 2 O 7 → Cr 2 O 3 + N 2 + 4H 2 O The conversion process takes place via Na 2 Cr 2 O 7, which gets reduced with Sulfur at high temperatures.Ĭhromia can also be formed by the decomposition of Chromium salts like Chromium nitrate or Ammonium dichromate by an exothermic reaction. The mineral Chromite like (Fe, Mg)CR 2 O 4 is used to derive Cr 2 O 3. ![]() The very first transparent hydrated form of Chromium (+3) Oxide was prepared by The Parisians Pannetier and Binet in 1838. The magnetic susceptibility is +1960.0×10 -6 cm 3 /mol. The chemical composition of chromic oxide has 68.46% of Chromium and 31.58% Oxygen content. There are three hydrogen bond acceptors and zero hydrogen bond donors. It is canonicalized with five covalent bonds. It has a boiling point of 4000 0 C or 4270 K and a melting point of 2435 0 C or 2708 K. It is insoluble in water, alcohol, and acetone and not very reactive to acids. The density of the compound is 5.22 g/cm 3. The compound has a hexagonal crystal structure with nearly spherical morphology. A trace amount can also be found in Chondrite meteorites. The mineral is extracted from Chromium rich tremolite skarns, Metaquartzite, and Chlorite veins. It is named after a Finnish geologist Pentti Eskola. The rare natural mineral of Cr 2 O 3 is Eskolaite. It appears as crystals or in fine crystalline powder form of light to dark green colouration. The monoisotopic mass of the Chromic Oxide (Cr 2 O 3 ) is 151.866 Da. Here, the metal has a +3 oxidation state. This is one of the major Oxides of Chromium. The alternative names of the compound are Dichromium Trioxide or Chromium Sesquioxide or Chromium (III) Oxide or Chrome green or Chromia. Cr 2 O 3 is an inorganic compound that goes by the chemical name Chromic Oxide. ![]()
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