【摘要】 非水电位滴定法测定柴油中酚和羧酸是一种方便快速的方法，特别适合于深色柴油的酸值和酚羟基的测定，并可以对酸和酚进行差示滴定。对纯物质的分析表明，酚和酸的回收率达到了分析的要求，对柴油的分析表明，与标准的ＫＯＨ－ 乙醇测定的酸值相当，同时可以测定柴油中的酚羟基值。本文探讨了各种分析条件对测定的影响及注意的事项，提出了最佳的分析条件。更多还原

【Abstract】 Potentiometric titration in non-aqueous solvent is a convenient and rapid method to determine phenol and carboxylic acid in diesel oil, especially for determining acid number and phenolic hydroxyl number of brunet diesel oil simultaneously. In this paper, the influences caused by some factors such as solvent, titrant, electrode, CO 2 and H 2O in the air are discussed. The analytical results show that the recovery ratio of phenols is 98% to 107%. Acid number of diesel oil samples is determined, and the analytical results are consistent with that by standard KOH-alcohol method.更多还原