2007-07-14 09:30:21 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Iron or mild steel can be protected against rusting by paint, grease, plastic or tin or chromium plating (barrier methods) or by sacrificial protection, coating it with a more reactive metal such as zinc (galvanising).
2007-07-14 09:36:42 · answer #1 · answered by Gervald F 7 · 2⤊ 0⤋
What is commonly done is grease or some type of oil is put on the metal and the air cannot penetrate it. An example not necessarily to do with corrosion but its the same principle would be sodium. Sodium metal is stored in parrafin oil so the air, which contains water vapor, does not come into contact with it which will ignite the sodium metal.
2007-07-14 11:26:15 · answer #2 · answered by scott k 4 · 0⤊ 0⤋
Oils, Greases, Paint and Cathodic protection (Sacrificial Anodes).
2007-07-14 09:54:38 · answer #3 · answered by Norrie 7 · 1⤊ 0⤋
certain polishes and finishes can prevent oxidation and corrosion. It depends on the conditions/elements the metal is exposed to
2007-07-14 09:34:45 · answer #4 · answered by Anonymous · 0⤊ 2⤋
galvanization
oiling,greasing,painting
by cathode protection
alloying since alloys have good resistance to good corrosion
2007-07-14 09:37:57 · answer #5 · answered by Psygnosis 3 · 0⤊ 0⤋
there isn't real protection when coating one metal with another metal, you just coat the metal you want to protect with a a metal that's easier to reduce, a sacrificial anode.
2007-07-14 09:55:06 · answer #6 · answered by qwerty09 2 · 0⤊ 1⤋
vegi oil will protect any metal!
2007-07-14 09:40:23 · answer #7 · answered by Anubis 2 · 1⤊ 0⤋