高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (11): 1690.

• 论文 • 上一篇    下一篇

对MgO重新水合及两类羟基的研究

蔡炳新   

  1. 湖南大学化学化工系, 长沙, 410082
  • 收稿日期:1994-01-03 修回日期:1994-07-04 出版日期:1994-11-24 发布日期:1994-11-24
  • 作者简介:蔡炳新,男,37岁,副教授.

Studies on Renew Hydration of MgO and Two Types of Hydroxyl Groups

CAI Bing-Xin   

  1. Department of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082
  • Received:1994-01-03 Revised:1994-07-04 Online:1994-11-24 Published:1994-11-24

摘要: 采用IR、XRD、TG-DTA等手段对MgO重新水合及其两类羟基进行了研究。发现MgO水解后活性增大,在实验条件下水解仅发生在表面浅层;水合可得到自由、水合两类羟基,600℃灼烧使两类羟基脱除;自由羟基由水合羟基在碱[O2-]作用下生成;添加Li+对表面两类羟基有影响。

关键词: MgO水合, 羟基, 添加Li

Abstract: In this paper, renew hydration of MgOand two types of hydroxyl groups were investigated by the techniques of IR, XRD, TG-DTA, It is found that the hydrolysis of MGO, under the experiment conditions, occured on the surface, the two types of hydroxyl groups of hydration are taken off at 600℃, the hydration hydroxyl group and O- build up free hydroxyl group, the two types of hydroxyl groups of MgOare influenced by Li+ added.

Key words: Hydration of MgO, Hydroxyl group, Adding Li

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