摘要
文章介绍了一种测定石油中总Cl量的方法。该法以质量分数为20%的NaOH—C_2H_5OH溶液(体积比为1:1)为试剂将石油中的有机Cl转化为Cl^-,用电位滴定法测定总Cl^-量。该法总Cl量的测量范围为0．50μg/g～0．05 g/g,对于300℃以下馏分油中总Cl量的测定准确度高,重复性好,用时省。同时具有成本低和操作简单的特点。
A new technique for measuring the total chlorine in oil is introduced. In this technique, a solution with 20 % of NaOH- C2H5 OH （1：1 volume） is used to convert the organic CI in oil into Cl^- , and the total Cl^- is measured by potentiometrie titration. The measuring range of total Cl- is 0.50 ppm - 0.05 g/g. For the oil fractions lower than 300 ℃, the measurement is high in accuracy and good in repeatability. In addition, the technique is saved in time, low in cost and easy in operation.
出处
《石油化工腐蚀与防护》
CAS
2007年第2期54-56,共3页
Corrosion & Protection In Petrochemical Industry
关键词
电位滴定法
总Cl
石油
potentiometrie titration, total chlorine, petroleum
