Chlorine was discovered in Uppsala, Sweden by C.W. Scheele, though Sir Humphry Davy determined it was an element. Chlorine exists as a pale greenish-yellow gas at room temperature with a melting point of -101°C and boiling point of -34°C. It is found in compounds in nature like salt, carnallite, and sylvite, and is produced by chemical companies for uses like bleach, water purification, and insecticides. Major compounds used are calcium hypochlorite for bleaching, potassium chlorate in fireworks, sodium chloride as table salt, and ethylene dichloride to make polyvinyl chloride.

1. Chlorine
By Chelsie Dedman

2. History!
The name “chlorine”
derives from the Greek
word chloros, meaning
“pale green”
Chlorine was discovered in
Uppsala, Sweden by C.W.
Scheele. However, Sir
Humphry Davy is the one
who concluded it was an
element

3. Properties!
 At room temperature, Chlorine is a gas
 Chlorine is of a pale greenish-yellow color
 The melting point is -101° C
 The boiling point is -34° C
 The density of Chlorine is 3.214 g/cm³
 Major isotopes: 35C, 36C, 37C. 36C is used in research as a
tracer.

4. Availability!
 Chlorine is not found by itself in nature. Instead, it is
found in many compounds. In nature, it can be found in
salt of the ocean water, carnallite, and sylvite.
 To get the element, one must contact a chemical
company like Sigma-Aldrich.
 Chlorine usually costs around $0.15 for every 100 g

5. Uses!
 By itself, chlorine is not
used very much, but it is
used to create many
compounds for many
purposes. It can be
found in bleach, and it is
also used in water
purification. It can also
be used in making
insecticides in the form
of chlorinated
hydrocarbons.
 Major compounds
include:
1. CaOCl: Calcium
hypochlorite- bleaching
and swimming pool
disinfectant
2. KClO3: Potassium
chlorate- fireworks
3. NaCl: Sodium chloride-
salt
4. Ethylene dichloride: used
to make polyvinyl
chloride- PVC

6. Fun Facts!
 Chlorine is among the top 10 most produced chemicals
in the U.S.

7. Resources!
 http://www.chemicool.com/elements/chlorine.html
 http://www.rsc.org/chemsoc/visualelements/pages/data/chl
orine_data.html
 http://www.periodic-table.org.uk/element-chlorine.htm
 http://science.jrank.org/pages/1440/Chlorine.html
 http://science.jrank.org/pages/1438/Chlorine-Properties-
uses-chlorine.html
 http://science.jrank.org/pages/1439/Chlorine-Compounds-
chlorine.html
 http://www.chemistryexplained.com/elements/A-
C/Chlorine.html
 http://chemistry.about.com/od/periodictableelements/ig/Ele
ments-in-the-Human-Body/Chlorine.--WP.htm