Comparison of Ionic, Polar Covalent, and Nonpolar Covalent Bonds.
(08-09) F3 Chemistry Individual Project Work Ionic & Covalent compounds Colisa Tou (37) F.3A.
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Transcript of (08-09) F3 Chemistry Individual Project Work Ionic & Covalent compounds Colisa Tou (37) F.3A.
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(08-09) F3 (08-09) F3 Chemistry Chemistry
Individual Project Individual Project WorkWork
Ionic & Covalent Ionic & Covalent compoundscompounds
Colisa Tou (37)Colisa Tou (37)
F.3AF.3A
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MagnesiumMagnesium ChlorideChloride
Formula: MgCl2Formula: MgCl2
Electron diagram:Electron diagram:
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Physical Properties of MgCl2
Melting point & boiling point
Its melting point is 714 °C (on rapid heating). Its boiling point is 1412 °C.
physical state at
room temperatu
re
crystalline solid
colour white or colourless
density 2.32 g/cm³ (anhydrous)1.56 g/cm³ (hexahydrate)
solubility in water
54.3 g/100 ml (20 °C)
electrical conductivit
y
It does not conduct electricity in solid state/ their normal physical states but conduct electricity in aqueous state
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Chemical properties of MgCl2laboratory preparatio
n
Magnesium chloride is regenerated from magnesium hydroxide using hydrochloric acid:Mg(OH)2(s) + 2 HCl
MgCl2(aq) + 2 H2O(l)It can also be prepared from magnesium carbonate by a similar reaction.
reactivity towards water / acid / alkali
It reacts with acids, water/moisture.
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Uses of MgCl2Uses of MgCl2
- Use as an anti-icerUse as an anti-icer
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Other use of Other use of MgCl2MgCl2
•Culinary use Culinary use
•Use in dust and erosion controlUse in dust and erosion control
•hydrogen storage hydrogen storage
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Potential HazardPotential Hazard• Flammability: Non-flammableFlammability: Non-flammable
• irritantirritant
• May emit toxic fumes of May emit toxic fumes of
hydrogen chloride if involvedhydrogen chloride if involved
in a fire.in a fire.
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special characteristicsspecial characteristics
• -slow heating leads to -slow heating leads to decomposition from 300 °C.decomposition from 300 °C.
• -magnesium chloride is -magnesium chloride is deliquescent. Handle and store in a deliquescent. Handle and store in a controlled environment and in an controlled environment and in an inert inert
gas such as argon. gas such as argon.
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ResourcesResources• http://en.wikipedia.org/wiki/http://en.wikipedia.org/wiki/
Magnesium_chlorideMagnesium_chloride
• http://search.about.com/http://search.about.com/fullsearch.htm?fullsearch.htm?terms=chemistry terms=chemistry (http://forums.about.com/n/pfx(http://forums.about.com/n/pfx/forum.aspx?webtag=ab-/forum.aspx?webtag=ab-chemistry&nav=messages&mchemistry&nav=messages&msg=8234)sg=8234)
• http://http://www.espimetals.com/www.espimetals.com/msds's/Magnesiummsds's/Magnesium%20Chloride.htm%20Chloride.htm
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The END~ The END~ Thank YouThank You