Alcohols
No description yet. This curated deck is ready for daily study.
Card preview (24)
what is the chemical name for alcohol in alcoholic drinks
ethanol
alcohols are a …
family of organic compounds
alcohols are a family of organic compounds that contain what atoms ? (3)
carbon, hydrogen and oxygen
defining feature of alcohols
OH functional group
general formula of alcohols
CnH2n+1OH
what alcohols display isomerism
ones with 3 or more carbon atoms
what are alcohols made from
Sugar (ethanol)
are alcohols a homologous series
yes
naming isomerism in alcohols ? (propanol with the OH in the first carbon)
propan-1-ol
how many methods of ethanol production
2
first method name
fermentation
how does fermentation work
you add yeast to sugar, which produces ethanol and carbon dioxide
products of fermentation
ethanol and carbon dioxide
word equation of fermentation
glucose →(yeast~30ºC) ethanol + carbon dioxide
which method is described as the renewable one
fermentation
why is fermentation described as the renewable way
because sugar is produced from sugarcane which can be replanted
2nd method for producing ethanol name
chemical manufacturing of ethanol
how does the chemical method work
• ethene is passed over a phosphoric acid catalyst at 300ºC and at 60-70atm
for the chemical method, what temperature is ethene passed at
300ºC
what type of catalyst is added
phosphoric acid catalyst
how many atm in the chemical method
60-70
word equation for chemical method
ethene + steam –( phosphoric acid catalyst)—> ethanol
why is the chemical way often called the ‘fossil fuel’ way
because ethene is produced by cracking oil
fermentation needs heating up to what temperature
37ºC