12.5 Alcohols

Short alcohol chains have low b.p. bc

low imf

Gen formula

CnH2n+1OH

Making ethanol: f__ g__(aq)
> via a__ respiration
> C__(aq) —y__→ 2__(aq) + 2C__(g)

fermenting glucose, anaerobic, c6h12o6, yeast, c2h5oh, co2

Making ethanol: c__ a__ of s__ & e__ (h__)
> i__ preparation
> C₂H₄ + H__ —H__, __°C→ C__

catalytic addition, steam, ethene, hydration, industrial, h2o, h3po4, 300, c2h5oh

Uses of ethanol
> s__
> f__
> p__

solvent, fuel, perfume

Combustion reaction
> C₂H₅OH(l) + 3__(g) → 2__(g) + 3H__(l)

o2, co2, h2o

	Fermentation	Hydration
Adv	Ø  Uses c__ = s__ Ø  ↓t__ = c__ Ø  S__	Ø  F__ Ø  Can run c__ Ø  Makes p__ e__ Ø  ↓w__ needed

crops, sustainable, temp, cheaper, simple, fast, continuously, pure ethanol, workers

	Fermentation	Hydration
Disadv	Ø  Uses c__ = ↓food s__ Ø  S__ Ø  B__ produced Ø  Makes i__ ethanol = has to be p__	Ø  Uses p__ = unr__ Ø  Needs ↑t__ & p__ = e__ Ø  ↑e__ needed

crop, supply, slow, batch, impure, purified, petroleum, unrenewable, temp, pressure, expensive, energy

Alcohol reactions
1. E__ reaction (d__) w/ e__ → ethene
> C₂H₅OH(g) —A__→ C₂H₄(g) + H__(g)

elimination, dehydrating, ethanol, Al2O3, h2o

Alcohol reactions
2. E__ reaction w/ conc. H₂SO₄ → alkene
> C₂H₅OH —__→ C₂H₄ + H₂O

elimination, h2so4

Alcohol reactions
3. S__ reaction w/ h__ & KOH → a__
> C₂H₅Cl + KOH → C__ + KCl

substitution, haloalkane, alcohol, c2h5oh