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Manufacturing substances in industry : SULPHURIC ACID

Sulphuric Acid

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  • Manufacturing substances in industry :SULPHURIC ACID

  • QUICK FACTS : Created in 1600sCreated by Johann Van Helmont140 million tonnes produced anually

  • Uses of Sulphuric Acid : USAGE

    Drying agent ElectrolyteFertilisersProductionDetergentOxidising agent Dehydratingagent

  • Manufacturing Process:

  • Procedure :Made by contact process.Firstly, sulphur is burned in oxygen (S + O2 = SO2)Or heating of metal sulphides. (2ZnS + 3O2 = 2ZnO + 2SO2) 1st

  • Sulphur Dioxide is burned again in O2.Added with Vanadium (V) Oxide as catalyst.Temp. : 450oC - 500oCPressure : 1 atmReaction produces Sulphur Trioxide (SO2 + O2 = SO3)98% of product is SO3.

    2nd

  • Sulphur Trioxide is dissolved in Concentrated Sulphuric Acid. (SO3 + H2SO4 = H2S2O7)Producing Oleum (H2S2O7).It's concentration reached 99.5%.Not acidic without H2O. Water is then added producing concentrated sulphuric acid (H2S2O7 + H2O = 2H2SO4)3rd

  • Summarizing:

  • Enviromental Problems: Obtained from : a) Bacterial Decay b) Volcanic gases c) Forest fires d) Coal or PetroleumBurning of the above items releases :# SO2

  • SO2 can dissolve in water or rain producing H2SO3.SO2 can be oxidised into SO3.SO3 dissolves in water producing H2SO4.CO2 dissolves in water producing H2CO3.This causes : "ACID RAIN"

  • EFFECTS :Damagingmarblestructure

    Damagingmetal structure

    Damage toSoil nutrients

    Threat toaquaticlife

  • SO HOW CAN WE CONTROL???

  • Reacting them with : a) Calcium Oxide b) Calcium Hydroxide c) Calcium Carbonate

  • OleumVanadium (V) Oxide

  • 19081969

  • Special Thanks to : Nur Syakirah MardhiahNurul AliaUmar SyahmiMuhammad Muaz

  • FIN