摘要
对硝基苯酚是没有热色性的物质,本工作在水溶液中合成了水合对硝基苯酚,且培养出单晶。该结晶水合物表现出可逆的热色性,当加热到140℃时,它会由橙红色变为明亮的红色;随着温度缓慢降低,其颜色也恢复为原来的橙红色。差示扫描量热法(DSC)分析证实了这一观察到的现象。热重分析(TG)测试显示该结晶水合物颜色的变化是由于水合和失水而导致的。
P - nitrophenol showed no sign of thermochromism. The title compound, p - nitro - phenol hydrate was synthesized in solution. It＇s monocrystalline was cultivate. The hydrate showed reversible thermochromism. When heated to 140℃, it turned from salmon pink to bright red. While resuming, the color came back. DSC analysis confirmed the observed phenomenon. TG analysis made sure the color＇s change owing to hydration or losing water.
出处
《常州工学院学报》
2006年第1期18-20,共3页
Journal of Changzhou Institute of Technology
关键词
热色性
可逆
水合对硝基苯酚
DSC
thermochromism
reversible
p - nitrophenol hydrate
DSC
