ethanol.ppt

 Ethanol 

25 April 2001

Estera Tomulet

1

 Properties  Pro perties   Also  Also

referred referre d to as ethyl alcohol 

  It’s  It’s chemical   Molecular  Molecular   Ethanol  Ethanol

formula: CH 3CH 2OH  formula:

Weiht: !"#$%rams We

is an alcohol & has a hydro'yl roup( roup( an )OH

*onded to a car*on atom+#   Is  Is

a clear( clear( colorless li,uid -ith sliht odor  odor 

  In  In

dilute a,ueous solution( has relati.e relati.ely ly s-eet  fla.or(( *ut -hen concentrated(  fla.or concentrated( it has a *urnin taste#

25 April 2001

Estera Tomulet

2

 Properties  Pro perties &continued+   Meltin

point of )//!#/ of )//!#/ derees Celsius

  0oilin

point of %1# derees Celsius

  3ensity

of $#%415m6 at 2$ derees Celsius

  7ta*le

*ut hihly flamma*le

  Incompati*le

-ith acids( al8ali metals( moisture(( pero moisture pero'ides( 'ides( etc#

25 April 2001

Estera Tomulet

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9ses of Ethanol   9sed

as thermometer  for temp#’s temp#’s *elo- H’s H’s  freein  fre ein point &)!$ derees Celsius+

  9sed

as antifreee in automo*ile radiators

  9sed

to ma8e se.eral types of alcohol &such as -his8y and *randy+

  9sed

 Ethanol can *e mi'ed to *urn in -ith asoline &/:4+ to automo*ile enines li8e help reduce air  pollution) CO is  asoline 25 April 2001 Estera Tomulet

4

;he Alcohol Part   Made  Made

since ancient times *y fermentation fermentation of  suars &*e.erae ethanol is still still made *y this  process:  pro cess:  simple suars are are the ra- material( and