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Essay Archive - Chlorine
Chlorine
Chlorine is (at room temperature) a greenish-yellow gas that can be
readily liquefied at 5170 Tarr or 6.8 atmospheres, at 20 C (68 F), and has a
very disagreeable odor. It’s Element Symbol is Cl, atomic number is 17, and
atomic mass is 35.453. Chlorine’s melting point is -101 C or 149.8 F. The
boiling point is -34.05 C or -29.29 F, at one atmosphere pressure. Chlorine is a
member of the halogen group. Chlorine was discovered by Swedish scientist Karl
Wilhelm in 1784, but he first thought it was a compound, rather than an element.
In 1810, Sir Humphrey Davy named it Chlorine, from the Greek word meanin....
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