Talk about Rust" Episode 6: "Types of Rust
カナエ
What does it mean for metals to rust in the first place? Generally, the phenomenon of "rusting" refers to metals releasing electrons and becoming ionized. In other words, this is called "oxidation." Additionally, there is a paired term for "oxidation," which is "reduction," and oxidation and reduction occur through the transfer of "electrons." What forms on the surface of metals due to this phenomenon is commonly referred to as 'rust.' There are several types of 'rust,' with the most well-known being iron rust. Iron rust has several common names depending on its state. Next, a well-known type is verdigris. This is a green rust that forms from the oxidation of copper, and there is also zinc rust, which is referred to as white rust. Thus, even though we refer to it simply as 'rust,' there are various types, and many colors and properties exist. There may even be types of 'rust' that have yet to be discovered. However, the phenomena of 'rusting' and 'oxidation' are singular, so it is sufficient to take measures according to the situation.
