Arsenic

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					         33


        As
P=33   Arsenic
N=33
       74.92160
   Properties and uses of Arsenic
                                                        Uses of Arsenic
       Properties of Arsenic                •   Arsenic is used as a doping agent in
• Upon heating arsenic and some                 solid-state devices.
minerals containing arsenic, it sublimes.   •   Arsenic compounds are used as
• Elemental arsenic occurs in two solid         insecticides and in other poisons.
    modifications: yellow, and grey or
    metallic.                               • Gallium arsenide is used in lasers
• With specific gravities of 1.97, and          which convert electricity into coherent
    5.73.                                       light.
• Arsenic has a atomic weight of
 74.92160.                                  • Arsenic is used pyrotechny, hardening
• Arsenic’s atomic number is 33.                and improving the sphericity of shot,
                                                and in bronzing
• Arsenic’s group is semi-metallic.         •   Arsenic is in alloys used for making
• Gray arsenic is a very brittle semi-          boiler tubes.
    metallic solid.                         •   Arsenic is in insecticides and weed-
                                                killers.
                                            • in the electronics industry in the
                                                manufacture of semiconductors
         Facts about Arsenic
• Albertus Magnus discovered Arsenic in
    1250.
•   Schroeder published two methods of
    preparing elemental arsenic in 1649.
• The origin of the name comes from
    the Greek work arsenikon meaning
    yellow orpiment.
•   It is about the 52nd most common
    chemical element on the earth.
•   Arsenic is thought to be the most
    toxic, while most organic forms of
    arsenic are relatively less toxic.
•   Arsenic is a naturally occurring
    substance.
                                           Arsenic was widely used by early alchemists and was
                                           also sometimes represented by the image of a swan.
                                 Arsenic is also
                                    in lasers                                        Yellow, and grey are
Arsenic is used in
   Weed killers                                                                            Arsenic’s
                                                                   Arsenic is                colors
                                                                   poisonous



                          Uses

                                                                                Properties

Arsenic is in alloys
 used for making
    boiler tubes

                                                   Arsenic


                       History

                                                                                    Info

Albertus Magnus
founded Arsenic                                    Arsenic is naturally
                                                   occurring substance
          Resources

• http://www.google.com
• http://www.chemicool.com

				
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posted:11/23/2011
language:English
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