摘要
通过在酸性介质中铑(Ⅲ)与氯化亚锡和碘化钾形成有色络合物,建立了测定醋酐羰基合成过程中的含铑样品的可见分光光度法。该体系中铑测定的最大吸收波长是440nm,铑浓度在0μg^300μg/50mL范围内符合比尔定律。该方法简便快捷,线性范围宽,重现性较好。
A visible speetrophotometry method was established for determination of Rh in carbonylation synthesis of acetic anhydride by forming colored complex of Rh （Ⅲ） with SnC12 and KI in acid medium. The Rh complex solution exhibited a maximum absorption at 440nm and obeyed the Beer＇s law in the Rh concentration range of 0μg-300μg per 50mL. This method is convenient and rapid, and has a wide linear range and good repeatability.
出处
《天然气化工—C1化学与化工》
CAS
CSCD
北大核心
2012年第5期76-78,共3页
Natural Gas Chemical Industry
关键词
醋酐
羰基合成
铑分析
氯化亚锡-碘化钾
可见分光光度法
acetic anhydride
carbonylation synthesis
rhodium analysis
SnCl2-Kl
visible spectrophotometry
