香根草提取物对冷轧钢在盐酸溶液中的缓蚀作用

邓志华, 雷然, 张智勇, 杨维宇, 李向红

Corrosion Inhibition of Vetiver Extract on Steel in Hydrochloric Acid Environment

DENG Zhihua, LEI Ran, ZHANG Zhiyong, YANG Weiyu, LI Xianghong

表1 c/θ-c线性拟合参数和标准吸附Gibbs自由能

Table 1 c/θ-c linear fitting parameters and standard Gibbs free energy of adsorption

T / ℃ r 2 Slope K / L·g-1 ΔG0 / kJ·mol-1 20 0.9992 1.11 65.83 -27.03 30 0.9978 0.92 26.30 -25.64 40-1 0.9761 1.82 47.66 -28.03 40-2 0.9976 0.98 43.74 -27.81 50 0.9959 0.95 22.93 -26.96