| The superb green pigment used by enamellers under this name is the green oxide or sesquioxide of chromium. |
| In these soils, red iron and aluminum hydroxide and sesquioxide compounds, the residual products of rock decay, have accumulated. |
| They consist usually of carbonate of lime or magnesia or sesquioxide of iron. |
| It differs from the other animal principles in containing, as an essential ingredient, the sesquioxide of iron. |
| The sesquioxide is found crystallized in an anhydrous form in braunite, and hydrated in manganite. |
| Pass dry chlorine over a mixture of sesquioxide of chromium and charcoal, heated to redness, in a porcelain tube. |
