Aluminum oxide can be an inorganic compound acquiring the chemical formula Al2O3. That is often known as alumina. The molar mass of this compound is one zero one.ninety six g/mol. It truly is an oxide of aluminum. This compound occurs in character primarily as corundum or bauxite. 纯的碳化硅是无色的，工业用碳化硅由于含有铁等杂质而呈现棕色至黑色。晶体上彩虹般的光泽则是因为其表面产生的... https://jaredzyywv.blog-gold.com/36816002/silicon-carbide-sand-paper-an-overview