Sunday, March 1, 2009

igcse chemistry free notes -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 are used as catalysts
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

No comments:

Followers