Thursday, November 27, 2008

Transition metals-igcse

Transition metals

The colours of transition metal compoundsAll compounds of transition metals are coloured. Some examples are:copper sulphate - blue, iron III oxide - brown, cobalt chloride pink.



Transition metals as catalysts
Transition metal or compound can be used as Catalyst



manganese (IV) oxide


decomposing hydrogen peroxide

platinum

catalytic converter in car exhaust

nickel

making margarine from vegetable oil and hydrogen

vanadium (V) oxide

making sulphuric acid

platinum with rhodium

making nitric acid

iron

making ammonia

Uses and properties of titanium, iron and copper



iron


Bridge Construction/High Strength


iron

permanent magnets /Magnetic


copper


water pipes/does not react with water


copper


Electrical wires/Good conductor of electricity


titanium

propeller shafts on ships, hip joints/does not react with water


titanium

aircraft engines/high strength, low density, high mp

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chemistry notes / igcse-gcse- Olevel

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