Visualization Study on Growth Process of Tetra-n-butyl Ammonium Bromide Hydrate

Qian Wenqiang; Zhang Peng

doi:10.3969/j.issn.0253-4339.2012.03.035

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Visualization Study on Growth Process of Tetra-n-butyl Ammonium Bromide Hydrate

更新时间：2024-07-18

- Visualization Study on Growth Process of Tetra-n-butyl Ammonium Bromide Hydrate
- Journal of Refrigeration Vol. 33, Issue 3, (2012)
- 作者机构：
  
  上海交通大学制冷与低温工程研究所
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0253-4339.2012.03.035
  CLC：
- Published：2012
- 稿件说明：
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Qian Wenqiang, Zhang Peng. Visualization Study on Growth Process of Tetra-n-butyl Ammonium Bromide Hydrate[J]. Journal of refrigeration, 2012, 33(3).
DOI：

Qian Wenqiang, Zhang Peng. Visualization Study on Growth Process of Tetra-n-butyl Ammonium Bromide Hydrate[J]. Journal of refrigeration, 2012, 33(3). DOI： 10.3969/j.issn.0253-4339.2012.03.035.

摘要

对静止状态下四丁基溴化铵水溶液在铜板表面上的降温结晶过程进行了研究。结合降温过程的温度测量和可视化研究，得出了水和不同质量分数四丁基溴化铵水合物结晶温度曲线，分析了曲线的异同，并对结晶过程的图像进行了分析讨论。研究表明：铜?板表面结晶生成的位置具有随机性；质量分数为10%的TBAB溶液中A型晶体较B型晶体更容易生成，质量分数分别为20%和30%的TBAB溶液中A型晶体与B型晶体同时生成。结晶生长速度与铜板表面纹理方向有关。

Abstract

The growth process of tetra-n-butyl ammonium bromide solution on copper surface has been investigated. The temperature curves of water and tetra-n-butyl ammonium bromide hydrate in different concentration were obtained. The growth process was monitored by microscopic and the digital photos were caught by CCD camera. Combined with the temperature curves

these photos were compared and explained.The results revealed that the position of crystallization on the copper surface is stochastic. It was found that Type A crystals formed easier than Type B crystals in 10% TBAB solutions. While in 20% and 30% solutions

Type A crystals and Type B crystals formed simultaneously. The growth velocity of the crystals is related to the texture of the copper surface.

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