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Aluminium alloys are traded on London Metal Exchange (LME) and its contract is conforming to...
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Metals
CHROMIUM |
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Chromium becomes unstable with oxygen, producing an oxide layer impermeable to oxygen that protects the underlying metal.
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Chromium is a metallic silver-gray, lustrous, brittle but tough. It is easy to polish and does not tarnish with air. Burns when heated, forming a green oxide.
