Chemical Process
Use of hydrated lime in water treatment

Before filtration, reduces the bacterial load on filters
All of these
Is to adjust the pH value
After filtration, combats the corrosive-ness of water due to the presence of O₂ & CO₂

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Chemical Process
Vulcanisation of rubber

Increases its oil & solvent resistance
Converts its plasticity into elasticity
Decreases its tensile strength
Increases its ozone & oxygen reactivity

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