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1.测定锑电极在硫酸溶液(从0.64N到6.23Ⅳ)和盐酸溶液(从1.04N到4.21N)中的阳极极化曲线φ_A-logi_A。其线性部份的斜率均为23毫伏。当[2log a±(H_2SO_4)-log a_w]和log a±(HCl)每增大一单位时,在恒定的电流密度下阳极极化电位分别朝正方向移动21毫伏和朝鱼方向移动82毫伏。 2.根据上述结果曾讨论锑电极在硫酸和盐酸溶液中可能的阳极溶解机理。
1. Determination of anodic polarization curve φ_A-logi_A of antimony electrode in sulfuric acid solution (from 0.64N to 6.23IV) and hydrochloric acid solution (from 1.04N to 4.21N). The slope of the linear part is 23 millivolts. The anodic polarization potentials were moved 21 mV in the positive direction and 82 in the positive direction at a constant current density for each increment of [2 log a ± (H 2 SO 4) -log a_w] and log a ± (HCl) millivolt. According to the above results, we discussed the possible anodic dissolution mechanism of antimony electrode in sulfuric acid and hydrochloric acid solution.