Pure chlorine is deadly poisonous

Chlorine is a deadly poison in its pure form, yet we eat it all the time! How can that be?

Chlorine is a deadly poison in its pure form, yet we eat it all the time! How can that be?

Chlorine is an element, just like iron or oxygen, but it never occurs in nature by itself. It's most commonly found mixed with the element sodium in a compound called sodium chloride - which is the chemical name for ordinary table salt! We eat chlorine mixed with sodium, which is harmless.

Pure chlorine is used as a poison to kill germs in our drinking water or in swimming pool water. Chlorine is so poisonous that water can be purified by just one part of chlorine for every 200 000 parts of water!

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