用活性炭提纯盐酸付玫瑰苯胺

EXTRACTION OF PARAROSANILINE HYDROCHLORIDE WITH ACTIVE CARBON

盐酸付玫瑰苯胺(pararosaniline Hydrochlorlde,又名对品红)是分析大气SO_2的主要试剂。本文建立了用活性炭代替正丁醇提纯对品红的新方法,具有操作简便。省时,成本低、污染少等特点,产品质量好且稳定。实验结果显示,使用本法提纯的对品红在分析大气SO_2中具有较高的精密度和准确度。

Pararosaniline hydrochloride is one of chief reayenst in the determination of SO_2 in atmosphere. In this study, a new purification method of pararosaniline hydrochloride was established by replacing n-butanol with active carbon. This method is more simple and time saved, lower cast and less environmental pollution. The product has better quality and is more stable.The results showed that the better precision and accuracy were obtained in the analysis of SO_2 in atmosphere by using the pararosaniline hydrochloride purified with active carbon.