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我国目前无论在轻工行业中还是在家用器械和器皿等方面都大量采用铝和铝合金材料,所以对它们的抗腐蚀性能不能不引起重视。对于它的耐酸性能,见到的资料比较多,但是有关它的碱性腐蚀方面的具体资料知道得就很少,而且有些结论是很含糊的本文拟就这方面的问题谋求明确的答案。 应当承认,纯铝电极电位——PH图对分析问题是个很重要的工具。不过它虽然能概括地告诉我们在碱性溶液中,铝是以A1O_2-离子形式腐蚀的,但是它却有一定的局
At present, our country uses a large amount of aluminum and aluminum alloy materials in the light industry or household appliances and utensils, so their anti-corrosion properties can not but pay close attention to. For its acid resistance, see the information more, but its basic information on alkaline corrosion is very little known, and some conclusions are very vague, the article intends to seek a clear answer to this issue. It should be acknowledged that the pure aluminum electrode potential - PH plot is an important tool for analytical problems. However, although it tells us in a general way that aluminum is corroded in the alkaline solution as AlO 2 - ions, it does have some effect