Page 183 - The Periodic Table Book

Uses CHLORINATION

The process of cleaning dirty water with
chlorine is called chlorination. This method
involves passing the water through a filter.

1. Dirty water
enters the tank. 3. Chlorine mixed
in water kills the
remaining germs. The Halogen Group
Running shoes

2. The filter traps
tiny particles
The soles of some of impurities.
running shoes 4. Clean water for
contain chlorine drinking, cooking, and
compounds. washing is released.

Sodium chloride is PVC pipes
used to season meals.
Strong water
Common salt pipes are composed
of thick PVC.
This chlorine-rich
Chloroform Breathing in plastic is tough. Safety goggles
this chlorine-
infused liquid
makes people
fall unconscious.

The chlorine levels in this pool
need to be regulated carefully to
maintain the quality of water.
Swimming pool PVC suitcase

This case
is tough
but flexible.
Bleach

This bleach
cleaner
contains a
compound
called sodium
hypochlorite.

against this weapon. Today, chlorine is used in chlorine acid is used to clean water in swimming
many ways. Its compounds are present in pools, while bleach and other cleaners use
everything from running shoes to choloroform. chlorine compounds to kill germs. One of the
It reacts with hydrogen to make hydrochloric acid, most widely used plastics, polyvinyl chloride
an industrial cleaner. This corrosive liquid eats away (PVC), contains chlorine. It is a tough plastic,
at most metals, releasing hydrogen gas. A weaker used to make many rigid objects. 181

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