Transcript Zinc - elementssph-7-4

ZINC-ZN
Brenda 7.4
GENERAL INFO
Atomic
number: 30
Melting Point: 419.58 C
Boiling Point: 907 C
Element Classification:
Metal
DISCOVERY
First
produced in the
1400s in India
Was rediscovered by
Andreas Sigismund
Marggraf in 1764
DESCRIPTION
It is a soft metal
 It a has grayish or blue-white color
 It contains 21 isotopes where 5 of them is stable
and the other 16 are not (unstable)
 It is brittle at low temperatures but malleable at
100-150 C
 It is an electric conductor
 It burns in air at high red heat
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THIS IS WHAT ZINC LOOKS LIKE…
USES OF
ZINC
1. FORM NUMEROUS ALLOYS
Such as…
Brass
Bronze
Nickel Silver
Soft Solder
German Silver
Spring Brass
Aluminum Solder
2. MAKE DIE
CASTINGS
In..
Electrical
Automotive
Hardware
3. TO GALVANIZE OTHER
METALS
To
prevent corrosion
Galvanize means to put
coating on iron
To make metals stop
rusting for quite a
long time
INTERESTING FACTS
Zinc is..
 Found on roofs because it has a
very high quality of roofing material
 A metal we all need for life
 Part of enzymes and many biological medicated
processes
 Easily reacted with acids to produce hydrogen
 Very slow to oxidize
 An interesting element because it is not a
poisonous element, where the two other elements
that are in the same group with Zinc, Mercury
and Cadmium, are both pretty poisonous.
 Something we need for us to survive
HAZARDOUS EFFECTS OF
ZINC TO THE ENVIRONMENT
Zinc production can cause:
 Water pollution-it can cause for fish to be
accumulated with Zinc which is able to bio
magnify up the food chain
 Soil pollution-farmlands could be polluted which
can cause farm animals to absorb concentration
that damages their health. It could also break
down microorganisms and earthworms since
their habitats are polluted.
 Plants to have their system unstable, unhandled
and uncontrolled
MORE INFORMATION ABOUT
ZINC
 In
our body, if we don’t have enough Zinc,
we are not able to smell things.
 When you combine it with other elements,
it could get quite frisky
 Zinc is an abundant metal
 An enzyme called ‘Carbonic Anhydrase’
needs Zinc to catalyze
the reaction of CO2
and water
BIBLIOGRAPHY
Websites
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Helmenstine, Anne Marie. “Zinc Facts.” About.com. 25 April 2010
http://chemistry.about.com/od/elementfacts/a/zinc.htm
“Zinc-Zn.” Lenntech. 25 April 2010
http://www.lenntech.com/periodic/elements/zn.htm
“The Element Zinc.” Jefferson Lab. 25 April 2010
http://education.jlab.org/itselemental/ele030.html
Images
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“Andreas Sigismund Marggraf.” Photo. 25 April 2010
http://www.bbaw.de/akademie/kalender/biog-pic-009-marggraf.jpg
“Zinc.” Photo. 25 April 2010
http://z.about.com/d/chemistry/1/0/w/c/zinc.jpg
“Zinc Crystal.” Photo. 25 April 2010
http://www.albany.edu/offcourse/july98/zinc_sm.jpg
“Zinc.” Photo. 25 April 2010
http://www.webelements.com/_media/elements/element-picstheo/30_Zn_1.jpg
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“Zinc Rangehood.” Photo. 25 April 2010
http://christopherleeplummer.com/company/blog/wpcontent/uploads/2007/09/zinc-rangehood.jpg
“5" Seat Springs (Brass).” Photo. 25 April 2010
http://www.justifieddefiance.com/catalog/images/Brass4Springs.jp
g
“Zinc Die Casting-01.” Photo. 25 April 2010
http://www.bldiecasting.com/products_img/200661692428.jpg
“Results for rust.” Photo. 25 April 2010
http://bostonbiker.org/files/2009/12/rust3.jpg
“Roof tiles texture.” Photo. 25 April 2010
http://mayang.com/textures/Architectural/images/Roofing/roof_tile
s_2260555.JPG
“Degradation of earth’s land surfaces-land pollution.” Photo. 25
April 2010 http://www.gradebook.org/pollution4.gif
“Carbonic Anhydrase.” Photo. 25 April 2010
http://andromeda.rutgers.edu/~huskey/images/carbonic_anhydras
e_active_site_w.png
Website
(2010, 25 April) Zinc - Periodic Table of Videos Retrieved from
http://www.youtube.com/watch?v=99wPiMb-k0o