(Lab03)_Oxides_and_Hydroxides_F11

(Lab03)_Oxides_and_Hydroxides_F11 - Oxides and Hydroxides...

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1 Oxides and Hydroxides GLY 4200 Lab 3 - Fall, 2011
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2 Oxides Oxygen is by far the most abundant element in the earth’s crust > 60% by atomic proportion Many minerals contain oxygen Only those minerals where the oxygen is combined with metallic elements directly are oxides
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3 Anionic Groups Containing Oxygen Almost all non-metallic elements form structural groups with oxygen, and then these groups combine with the metallic elements Examples: • Carbonates CO 3 • Phosphates PO 4 • Tungstates WO 4
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4 Oxide Classification Oxides can be divided into classes Simple oxides, which contain one cation type in association with oxygen Multiple oxides, which contain more than one cation type in association with oxygen Hydroxides are minerals which contain the OH -1 group, the oxygen’s are directly bound to the metal with a single bond
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5 Simple Oxides • Possible types: XO, X 2 O, XO 2 , X 2 O 3 X is a metal cation
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6 Multiple Oxides • Possible types: XY 2 O 4 , and XY 2 O 6 X and Y are metal cations
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(Lab03)_Oxides_and_Hydroxides_F11 - Oxides and Hydroxides...

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