Aerosol Spray Cans

Essay specific features

 

Issue:

Science

 

Written by:

Victor D

 

Date added:

December 25, 2013

 

Level:

University

 

Grade:

B

 

No of pages / words:

3 / 594

 

Was viewed:

8160 times

 

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Essay content:

The propellant may emerge as well but, now under less pressure, it immediately evaporates. First patented in the US in 1941, aerosol spray cans have been used as convenient packages for an ever increasing range of products including paints, insecticides, and shaving cream to name a few. The can is filled with the product to be sprayed and the propellant, a compressed gas such as butane or Freon...
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The can is filled with the product to be sprayed and the propellant, a compressed gas such as butane or Freon. The gas is partly liquefied by the pressure in the can, but there is a layer of free gas above the liquid. As the can empties liquefied gas vaporizes to fill the space. The valve is normal held shut by the pressure in the can, and by the coil spring directly below the valve stem...
displayed 300 characters

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