Chemistry: Metals and their uses
- Created by: Bexxmay
- Created on: 04-04-14 15:50
View mindmap
- Metals and their issues
- Extracting metals
- Rocks that conatin enough metals or a metal compound is called an ORE.
- Displacement: extracting a compound with a more reactive element.
- Reduction: carbon removes the oxygen from the oxide to produce the metal
- Iron and Steel
- iron in ores are extracted by a blast furnace.
- 96% iron produced
- Iron is used to make steel. Steel are alloys of iron.
- Low carbon steels are easily shaped and high-carbon steels are hard
- iron in ores are extracted by a blast furnace.
- Aluminium and Titanium
- Aluminium has a low density. restistant to corrosion
- Extracted by electrolysis
- High temperatures and lots of electricity. This makes it very expensive to extract. I
- It is weak on its own
- High temperatures and lots of electricity. This makes it very expensive to extract. I
- Extracted by electrolysis
- Aluminium is more reactive than carbon
- Titanium: Resistant to corrosion. Very strong. Low density
- Reduced by carbon, but makes it brittle
- Expensive to extracts.
- Reduced by carbon, but makes it brittle
- Aluminium has a low density. restistant to corrosion
- Extracting Copper
- Extracted by smelting
- Phytomining: Plants to absorb copper compounds from the ground. Plants are burned to produce ash, from which copper can be expracted.
- Bioleaching: Bacteria to produce solutions containing copper compounds
- Useful metals
- Periodic Table
- Central block: Transitional metals
- Good conductors of electricity
- Strong but can be bent
- Central block: Transitional metals
- Periodic Table
- Extracting metals
Comments
No comments have yet been made