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Color of Rust[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: Seaint(--nospam--at)seaint.org
- Subject: Color of Rust
- From: GSKWY(--nospam--at)aol.com
- Date: Thu, 12 Dec 2002 08:43:23 EST
When steel (iron) rusts, it forms several different corrosion products, depending on the relative availability of oxygen and water. The colors range from the familiar red-brown to blue, green, and black.
Does anyone happen to know (off-hand), the various products and under what conditions they are formed. In particular, I am curious as to whether steel constantly covered with 1/8 in. of water (for say five years) would form a soft black corrosion product, due to the limited oxygen.
Gail S. Kelley
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