Ethanol Flashcards
1
Q
How to produce ethanol in lab
A
Use ethene and steam
C2H4 + H2O => C2H5OH
Temp: 300 degrees Celsius
Pressure: 60-70 atmospheres
Catalyst: phosphoric acid
2
Q
Advantages and disadvantages of ethanol lab production
A
Ethene cheap but from non renewable resources will become expensive.
Rate of reaction very fast
Product pure
Expensive equipment but low labour costs
3
Q
Ethanol and fermentation
A
Yeast converts sugar to ethanol
Lower temp: 30
Simpler equipment
4
Q
Ethanol and fermentation advantages disadvantages
A
Rate of reaction very slow
Impure needs further processing
Sugar renewable
Lower temp cheaper equipment but high labour costs
5
Q
Ethanol dehydration
A
Removing water dehydration reaction
Temp blue Bunsen
Catalyst aluminium oxide : provides large SA for reaction
