Search the Properties of Matter site Properties of Matter glossary Photos, illustrations and streaming media on the Properties of Matter site Properties of Matter table of contents Properties of Matter home page Link to NSRC home page

Properties of Matter Element Card 5, Lesson 21

Chlorine

Cl

Melting point

-101° C

Boiling point

-34° C

Density

0.0032 g/cm³

Appearance

 

Other physical properties

 

Chemical properties

Chlorine is reactive, very corrosive, and very poisonous.

Compounds

Chlorine forms crystalline compounds with metals. the most common compound containing chlorine is sodium chloride (table salt). Chlorine reacts explosively with hydrogen to form hydrogen chloride, which, when dissolved in water, produces hydrochloric acid.

Uses

Chlorine kills microbes in tap water and swimming pools. It is also a raw material used in the manufacture of plastics.

Notes

Chlorine is made by the electrolysis of sodium chloride solution.

         

Copyright © 2006 Theodore W. Gray

Chlorine is a highly poisonous, colored gas.

 

 

 

 

 

 

 

 

 

More about Chlorine:

http://periodic.lanl.gov/elements/17.html

Information about the STC/MS curriculum Link to NSRC home page NSRC contact information NSRC copyright and permissions information Smithsonian Institution privacy policy Properties of Matter site map