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无机材料学报

无机材料学报

• 研究论文 • 上一篇    

微波酸消解α-Al2O3研究

吴显欣; 陈天裕   

  1. 中国科学院上海硅酸盐研究所无机材料分析测试中心 上海 200050
  • 收稿日期:2002-01-10 修回日期:2002-02-28 出版日期:2003-03-20 网络出版日期:2003-03-20

Microwave-assisted Acid Dissolution of α-Al2O3

WU Xian-Xin; CHEN Tian-Yu   

  1. Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China
  • Received:2002-01-10 Revised:2002-02-28 Published:2003-03-20 Online:2003-03-20

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摘要： 使用MARS-5微波高压消解系统采用HCI或HNO3成功地溶解了α-Al2O3样品,指出当溶剂温度上升至240℃时,HCI或HNO_3对α-Al2O3样品具有较强的溶解能力.当溶剂量固定时,样品量的大小与溶样时间大致成正比关系. Al2O3样品中α相比率越高,消解时间越长.

关键词: 微波消解, α-Al2O3, HCl, HNO3

Abstract: A method for the acid (HC1 or HNO3)dissolution ofα-Al2O3 by MARS-5 microwave digestion system was proposed. When the temperature of digestion system increased to 240℃,α-Al2O3 sample was dissolved by HC1 or HNO3. When the digestion reagent mass was constant, the digestion time was directly proportional to the sample mass. The digestion time was prolonged when the ratio of α-phase in Al2O3 sample was increased.

Key words: microwave digestion, α-Al2O3, HCI, HNO3

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