Your SlideShare is downloading. ×
0
Aluminium and titanium By Entrancei.com
Aluminium and Titanium These are two metals with a  low density  which means they are  lightweight  for their size. Alumin...
Titanium,  when pure,  is a lustrous, white metal.  The metal burns in air and is the only element that burns in nitrogen....
Aluminium and Titanium   resist corrosion  as they have a very thin layer of their oxides on the surface, which stops air ...
Extraction Unlike iron, aluminium and titanium cannot be extracted from their oxides by reduction with carbon because:    ...
<ul><li>In order to isolate pure aluminium, impurities must be removed from the bauxite.  </li></ul><ul><li>This is done b...
<ul><li>This involves the action of  chlorine  and  carbon  on the titanium ore followed by  fractional distillation  and ...
extraction Aluminium extraction is  expensive  because  the process needs a lot of electrical energy .  Titanium extractio...
Upcoming SlideShare
Loading in...5
×

Aluminium and titanium powerpoint1292424897

2,359

Published on

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
2,359
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
36
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Transcript of "Aluminium and titanium powerpoint1292424897"

  1. 1. Aluminium and titanium By Entrancei.com
  2. 2. Aluminium and Titanium These are two metals with a low density which means they are lightweight for their size. Aluminium is used for aircraft, trains, overhead power cables, saucepans and cooking foil.
  3. 3. Titanium, when pure, is a lustrous, white metal. The metal burns in air and is the only element that burns in nitrogen. It is marvellous in fireworks. reaction with nitrogen is exothermic.
  4. 4. Aluminium and Titanium resist corrosion as they have a very thin layer of their oxides on the surface, which stops air and water getting to the metal. this phenomenon is know as surface oxidation
  5. 5. Extraction Unlike iron, aluminium and titanium cannot be extracted from their oxides by reduction with carbon because:   Aluminium is more reactive than carbon, so the reaction does not work. Titanium forms titanium carbide with carbon, which makes the metal brittle.
  6. 6. <ul><li>In order to isolate pure aluminium, impurities must be removed from the bauxite. </li></ul><ul><li>This is done by the Bayer process , which involves treatment with sodium hydroxide solution , followed by purification using electrolysis. </li></ul>Aluminium is mined in huge scales as bauxite.
  7. 7. <ul><li>This involves the action of chlorine and carbon on the titanium ore followed by fractional distillation and then reduction with magnesium . </li></ul>Titanium is isolated using the Kroll method .
  8. 8. extraction Aluminium extraction is expensive because the process needs a lot of electrical energy . Titanium extraction is expensive because the process involves several stages and a lot of energy. This especially limits the uses of titanium.  
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×