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4 Cards in this Set
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ethanol can be produced by the hydration of etene with steam in the presence of a catalyst. or by fedementation with yeast. it is a flammable colourless liquid boiling point of 78*C |
hydration of ethane: ethene + steam = ethanol
fermentation: sugar + yeast = ethanol + carbon dioxide |
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hydration of ethene: advantages: is a fast reaction is a continuous process so is less labour intensive produces pure ethanol |
disadvantages: uses crude oil, which is a on renewable resource needs a temperatue of 300*C and a high pressure( so uses a lot of energy ) |
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fermentation advantages: uses corn, sugar cane ( renewable resources ). needs a temperature of 30-40*C ( so uses less energy) |
disavantages: is a batch process, which needs alot of workers produces impure ethanol and is purified by distillation, is a slow reaction |
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alcoholic drinks, fuel, solvent, deodrants, medicine and perfumes |
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