Chemistry 101

 

Water is a polar molecule. Water looks sort of like:

 

  H

  |

H-O

 

Hydrocarbons, of which gasoline is an example, are non-polar. Hydrocarbons
look like:

 

  H H H

  | | |

H-C-C-C-H

  | | |

  H H H

 

Alcohols are polar on one end and non-polar one the other end like:

 

  H H 

  | | 

H-C-C-O-H

  | | 

  H H 

 

 

Since alcohols look like water on one end and hydrocarbons on the other,
alcohol will mix with either.

 

If you have a lot of gasoline (hopefully the norm) with (say) 15% alcohol
and no water, the alcohol will go into solution with the gasoline
completely. If you add a small amount of water to the mix, the water will
join with the alcohol and go into solution also. (This is how dry-gas
works).  However, if the amount of water is large compared to the amount of
alcohol, the alcohol comes out of solution with the gasoline and goes into
solution with the water.

 

John Cooper

Skyport Services

4996 Delaware Tnpk

Rensselaerville, NY 12147

518 797-3064

www.skyportservices.net

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