Electrolysis of brine

brief overview of the process and products of the electrolysis of brine/salt water

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  • Created on: 25-05-10 13:59
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Using the products of brine
To name the ways the products of the electrolysis of brine are used.
Hydrogen Chlorine Sodium hydroxide
Diagram/explanation of Hydrogen is discharged at Chlorine is discharged at the The Na+ and OH- ions stay
how this product is the cathode anode in the solution and join
made during the 2H+ + 2e H Cl- ­e Cl together to form sodium
electrolysis of brine Reduction Oxidation hydroxide.
Items/chemicals that are Used as a fuel (especially Bleach Detergents and soap
made from this product in rockets) Solvents Paper
Margarine Hydrochloric acid Cleaning agent
Fertilizers (Haber Used as a weapon (WW1 Paint stripper
process) and Iraq war)
Hydrochloric acid
Industrial processes Hydrogenation Water purification Production of
which use this product Fuel production Bromine extraction aluminium
Haber process Production of chlorates Fuel production
Catalyst in the
production of biodiesel
Food preparation
Photograph showing Ammonia production as Water purification Soap production
one use of this product fertiliser
Did you know...? Discovered by Henry Discovered by Carl A soluble, white
Cavendish in 1776 Wilhelm Scheele in 1774 crystalline substance
Hydrogen is French for Originates from the that readily absorbs
water-maker Greek word 'khloros' carbon dioxide and
Melting Point: 259.14°C meaning green referring moisture from the air.
Boiling Point: 252.87°C to the colour of the gas Melting Point: 318 °C
Colourless, highly Melting Point: -100.98 Boiling Point: 1390 °C
flammable gas °C
It is lightest of all gases Boiling Point: -34.6 °C
and the most abundant Very reactive, highly
element in the universe irritating,
greenish-yellow gas
AQA Science © Nelson Thornes Ltd 2006 C2 1.1 1


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