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.
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.