Abstract—

A by-product of oxygen biotransformation during the life of bacteria is the superoxide ion \({\text{O}}_{2}^{ - }\), which quite easily, including nonenzymatically, can turn into the stable product H₂O₂, which, as is well known, may exhibit corrosive properties for metals. Thus, the vital products of bacterial can act on a metal not only as chemical agents, they can also electrochemically stimulate corrosion. To identify the nature of the elementary stages of biocorrosion, an attempt was made to simulate electrochemical corrosion of zinc using well-known electrochemical methods. Zinc corrosion occurs by two electrochemical mechanisms: corrosion by oxygen depolarization and oxidation of zinc by hydrogen peroxide. The limiting stage of the corrosion process is diffusion of the oxidizing agents to the zinc surface.

中文翻译：

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大肠杆菌产生的腐蚀性代谢产物对锌腐蚀的影响

摘要-

细菌生命过程中氧气生物转化的副产物是超氧离子\（{\ text {O}} _ {2} ^ {-} \），它很容易地（包括非酶促作用）变成稳定的产物H ₂ O ₂众所周知，它可能表现出对金属的腐蚀性。因此，细菌的重要产物不仅可以作为化学试剂作用于金属，而且还可以电化学刺激腐蚀。为了确定生物腐蚀基本阶段的性质，尝试使用众所周知的电化学方法模拟锌的电化学腐蚀。锌的腐蚀通过两种电化学机理发生：氧去极化腐蚀和过氧化氢氧化锌。腐蚀过程的极限阶段是氧化剂扩散到锌表面。