Chromium oxide, chromium dioxide
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Cr2O3 chromium oxide (III) (sesquichromium oxide, acetate green) — very solid refractory powder of green color. Temperature of melting is 2435 °C, boilings apprx. 4000 °C. Density is 5,21 g/cm ³. It is water-insoluble. On hardness it is close to corundum therefore it is entered into structure of the polishing means.
the main pigment for green paint
abrasive — component of polishing pastes (for example GOI)
the catalyst in a number of organic reactions
component of furnace charges for receiving spinels and artificial jewels