使用Gamry Reference 600型电化学工作站，采用传统的三电极体系。N80钢片作工作电极（WE），用环氧树脂封装，有效工作面积为1 cm2；铂箔作辅助电极（CE）；饱和甘汞电极（SCE）作参比电极（RE）。试片在酸液中静置20分钟后，能够得到稳定的开路电位（OCP），即相对于工作电极的自腐蚀电位值。之后以扫描速率为0.5 mV·S-1，扫描范围为-200 mV～200 mV（vs SCE相对于开路电位）的动电位扫描方式进行极化曲线测试。腐蚀液为以不同浓度的BQC或BQD为缓蚀剂的质量分数为15%的盐酸水溶液，实验测试温度为25℃。该数据为 0.2mmol 4-F取代吲哚嗪衍生物的极化曲线数据，属于 4-F取代吲哚嗪衍生物的极化曲线数据组。

A traditional three-electrode system was used with a Gamry Reference 600 electrochemical workstation. an N80 steel sheet was used as the working electrode (WE), encapsulated in epoxy resin with an effective working area of 1 cm2; a platinum foil was used as the auxiliary electrode (CE); and a saturated calomel electrode (SCE) was used as the reference electrode (RE). The specimens were able to obtain a stable open circuit potential (OCP), i.e., the value of the self-corrosion potential with respect to the working electrode, after standing in the acid solution for 20 min. Afterwards, the polarization curves were tested by dynamic potential scanning with a scan rate of 0.5 mV-S-1 and a scan range of -200 mV to 200 mV (vs SCE relative to the open-circuit potential). The corrosion solution was an aqueous hydrochloric acid solution with 15% mass fraction of BQC or BQD as corrosion inhibitor at different concentrations, and the experimental test temperature was 25 °C.This data is the polarization curve data for 0.2 mmol of 4-F substituted indolizine derivatives and belongs to the polarization curve data set for 4-F substituted indolizine derivatives.