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采用双波长法对对氯水杨酸的纯度进行了测定。对氯水杨酸在乙醇中的最大吸收波长为243 nm，副产物等吸收总波长为267 nm。测定纯对氯水杨酸的标准纯度都超过99.5%，测定市售3种对氯水杨酸的纯度在97.8%~98.0%。研究表明，该方法操作简单，分析数据准确可靠。
对氯水杨酸的纯度测定
【摘 要】
：
采用双波长法对对氯水杨酸的纯度进行了测定。对氯水杨酸在乙醇中的最大吸收波长为243 nm，副产物等吸收总波长为267 nm。测定纯对氯水杨酸的标准纯度都超过99.5%，测定市售3种对
【机 构】
：
青岛科技大学 化工学院,山东 青岛,266042
【出 处】
：
应用化工
【发表日期】
：
2014年11期
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