Sulfur C12 Flashcards
1
Q
Name the manufacturing of sulfuric acid
A
Contact process
2
Q
What is the first step of the contact process
A
Sulfur is burned in the presence of oxygen to produce sulfur dioxide
3
Q
Conditions for step 2 of the contact process
A
- High temperature (450)
- Excess of air (SO2 -> SO3)
- Exothermic (Low temp too slow reaction)
- Lower pressure (Less than 2 atm)
- HEEL
4
Q
Step 3 of the contact process
A
- Sulfur trioxide dissolved in concentrated sulfuric acid
- Forms oleum
5
Q
Step 4 of the contact process
A
- Water is added to oleum
- Makes concentrated sulfuric acid
6
Q
Step 1 chemical equation
A
S + O₂ –> SO₂
7
Q
Step 2 chemical equation
A
2SO₂ + O₂ ⇌ 2SO₃
8
Q
Step 3 chemical equation
A
H₂SO₄ + SO₃ –> H₂S₂O₇
9
Q
Step 4 chemical equation
A
H₂S₂O₇ + H₂O –> 2H₂SO₄
