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研究金属腐蚀的化学原理,有效防止金属腐蚀已成为科学研究和技术领域中的重大问题。以铁制品为研究对象,中学化学在人教版教材九年级化学下册、普通高中化学(选修1、选修4)中都安排了铁制品锈蚀的内容,通过实验探究,以螺旋上升方式递进研究了金属腐蚀发生的条件、金属腐蚀的化学本质、金属防腐的方法等。目前教材中的实验尚有研究的空间,如果没有实验证据证明铁制品的锈蚀有氧气参加,则会因为反应速度缓慢而使得实验现象不够明显,不适合课堂演示等。下面笔者将从实
Studying the chemical principle of metal corrosion and effectively preventing metal corrosion have become major problems in the field of scientific research and technology. Taking the iron products as the research object, middle school chemistry arranges the contents of the corrosion of iron products in the ninth grade chemistry book of the People’s Education Publishing House Textbook and the general high school chemistry (elective 1, elective 4). Through experiment and exploration, The conditions of metal corrosion, the chemical nature of metal corrosion, the method of metal corrosion prevention, etc. were studied. At present, there is still room for research in the teaching materials. If there is no experimental evidence to prove the corrosion of iron products with oxygen, the experimental phenomenon will not be obvious due to the slow reaction speed, which is not suitable for class presentations. The author will follow from the real