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【中文名称】氧化铝;矾土【英文名称】aluminum oxide; alumina【结构或分子式】 Al2O3【相对分子量或原子量】101.94【密度】3.9-4.0【熔点(℃)】2050【沸点(℃)】2980【性状】 白色粉末【溶解情况】 不溶于水,能渐渐溶于浓硫酸。【用途】 用作研磨剂,并用于制坩埚、陶瓷、耐火材料和人造宝石等。用作制铝原料,并可形成不同晶形的氢氧化铝。。【制备或来源】 煅烧氧化铝。自然界有刚玉。【其他】 原料氢氧化铝晶形不同和焙烧条件不同将形成不同晶形的氧化铝。
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alumina 氧化铝(亦称矾土)Any of several forms of aluminum oxide, Al2O3, occurring naturally as corundum, in a hydrated form in bauxite, and with various impurities as ruby, sapphire, and emery, used in aluminum production and in abrasives, refractories, ceramics, and electrical insulation.Any of several forms of aluminum oxide, Al2O3, occurring naturally as corundum, in a hydrated form in bauxite, and with various impurities as ruby, sapphire, and emery, used in aluminum production and in abrasives, refractories, ceramics, and electrical insulation. 矾土,氧化铝一种氧化铝的形式,Al2O3,以钢石的形式存在,水合形式存在于铝土矿中,杂有各种不纯物,如红宝石、蓝宝石、金刚砂,用于制造铝、研磨剂、耐火材料、瓷器和电子绝缘物Also called: aluminum oxideactivated alumina活性氧化铝anhydrous alumina无水氧化铝calcined alumina煅烧(的)氧化铝colloidal alumina胶体氧化铝crystalline alumina结晶矾土fibrous alumina纤维状氧化铝fused alumina熔融氧化铝hydrated alumina水合氧化铝manufactured alumina工业氧化铝microcrystalline alumina微晶刚玉natural alumina天然氧化铝(磨料)polycrystal alumina多晶氧化铝(制作快摆叉瓦用)porous alumina多孔氧化铝powdered alumina氧化铝粉regular alumina重结晶氧化铝ruby alumina红宝石色氧化铝semi-friable alumina高氧化铝磨料single crystal alumina单晶氧化铝, 氧化铝单晶tabular alumina刚玉, 金刚砂transition alumina过渡型氧化铝(亚稳型氧化铝的通称)trihydrate alumina三水氧化铝, 氢氧化铝