Diethyl succinate was synthesized from succinic acide and absolute alcohol with anhydrous ferric chloride catalyst under normal atmosphere. Water clarifying agent& Ferric chloride 报道了以丁二酸和无水乙醇为原料,在无水氯化铁催化下合成丁二酸二乙酯的反应条件。GB4482-1993净水剂氯化铁
This paper introduces a newly developed oxypathor under one absolute atmosphere. 介绍一种常压环境下的全新吸氧装置。
Measurements of cosmic-radiation absolute ionization in the atmosphere 大气中宇宙射线绝对电离量的测量