The Contact Process Flashcards
1
Q
What is done in the second stage of the contact process ?
A
Sulfur dioxide is oxidised to form sulfur trioxide
2
Q
What happens in stage 3 of the Haber process
A
The sulfur dioxide is dissolved in sulfuric acid to form liquid oleum
3
Q
What happens in stage 4 of the contact process
A
The oleum is diluted with measured amounts of water to form concentrated sulfuric acid
4
Q
What is the temperature used in the contact process ?
A
450 degrees Celsius
5
Q
What pressure is used in the contact process
A
2 atm pressure
6
Q
What catalyst is used in the contact process?
A
Vanadium(v)oxide
7
Q
Give 3 uses of sulfuric acid
A
- It is used in fertilisers - mainly phosphate fertilisers - to help plant growth
- Paint - sulfuric acid can be used to form titanium dioxide which creates a white pigment used in paint
- Detergents - used for cleaning everything and anything
8
Q
What is done in the first stage of the contact process?
A
Sulfur dioxide is formed
Either by burning sulfur in air
Or
By roasting Sulfur ores
