大学化学 >> 2020, Vol. 35 >> Issue (1): 118-124.doi: 10.3866/PKU.DXHX201904013

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明矾的宏观晶体形状

张天一,潘玙璠,徐一寒,崔爱莉*()   

  • 收稿日期:2019-04-09 录用日期:2019-05-31 发布日期:2019-06-12
  • 通讯作者: 崔爱莉 E-mail:cuial@mail.tsinghua.edu.cn

Macroscopic Morphology of Alum(K) Crystal

Tianyi Zhang,Yufan Pan,Yihan Xu,Aili Cui*()   

  • Received:2019-04-09 Accepted:2019-05-31 Published:2019-06-12
  • Contact: Aili Cui E-mail:cuial@mail.tsinghua.edu.cn

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摘要：

通过简易的热力学模型推测晶体宏观形状及缺陷的成因，借助于本科无机探究实验，培养明矾大晶体并测量其宏观参数，拟合出明矾的热力学参数，以解释明矾的宏观形状、缺陷并预测明矾的完美八面体的可能性与晶体的自范性。

关键词: 明矾, 宏观晶面, 自范性

Abstract:

In this paper, a simple thermodynamic model of crystal macroscopic morphology and the cause of the defects were suggested. By virtue of growing alum(K) crystals and measuring their macroscopic parameters in the inorganic laboratory for undergraduates, we can calculate the thermodynamic parameters of alum, thus explaining the macroscopic morphology and defect of alum(K), and predicting the possibility for alum(K) to generate octahedral crystals and its self-normality.

Key words: Alum(K), Macroscopic crystallographic planes, Self-normality