Chromium is typically found in two forms.
Chromium metal sheet.
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Compounds have strong and varied colors.
Chromium has a melting point of 1907 c 3465 f which is relatively low compared to the majority of transition metals.
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Chromium iii and chromium vi which are respectively known as trivalent chromium and hexavalent chromium.
It is lustrous hard and brittle with high corrosion resistance and high melting point.
Chromium cr is a naturally occurring heavy metal found in the earth s crust.
Overview chromium is a steel gray lustrous hard metal extracted from chromite ores.
Safety data sheet section 1 identification material name.
Although it can be released into the environment through natural processes it is also released from industrial sources.
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Exists in active and passive forms the latter giving rise to its corrosion resistance due to a thin surface oxide layer that passivates the metal when treated with oxidizing agents.
Cr m 02 cr m 03 cr.
Chromium metal is available as disc granules ingot pellets pieces powder rod wire and sputtering target.
Imported 430 000 metric tons of chromium primarily from south africa kazakhstan russia and china.
Chromium is highly resistant to tarnishing which makes it useful as a metal that preserves its outermost layer from corroding unlike other metals such as copper magnesium and aluminium.
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Cr ion forms many coordination compounds.
Production of chromium was estimated at 160 000 metric tons coming almost entirely from recycling stainless steel scraps.
The london metal exchange is the trading and price formation venue of choice for industrial metals globally.
All applicable american elements product codes e g.
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Chromium is hard brittle semi gray metal.