The results showed that as the concentrations of sodium gluconate and sodium bitartrate were more than a definite value, the passivation current decreased and passivation potential shifted in negative direction, and this meant the passivation ability of carbon steel was enhanced. 结果表明:葡萄糖酸钠、酒石酸钠浓度大于某一值后,碳钢的致钝电流随其浓度增加而降低,钝化电位负移,促进碳钢的钝化;
The effects of three hydroxycarboxylates: sodium gluconate, sodium bitartrate and sodium citrate on the passivation behaviour of carbon steel in carbonate-bicarbonate buffer solution system were investigated. 研究了葡萄糖酸钠、酒石酸钠、柠檬酸钠三种羟基羧酸盐对碳酸盐体系碳钢的钝化行为的影响。