Boiling water on Polytetrafluoroethylene- 3/8" d. >1/16" h. maybe the lowest.
Ethanol on Polytetrafluoroethylene- 5/8" d. >1/16" h.
Vegetable oil on Polytetrafluoroethylene- 5/8" d. 1/16" h.
Water on polypropylene- 9/16" d. 3/32" h.
Boiling water on polypropylene- 1 1/16" d. 1/8" h.
Ethanol on polypropylene- 7/16" d. >1/16" h.
Vegetable oil on polypropylene- 7/8" d. 1/16" h.
Ethanol on aluminum- 1/4" d. >1/16" h.
Vegetable oil on aluminum- 1/2" d. 1/16" h.
Ethanol
Vegetable Oil
Polytetrafluoroethylene
Polypropylene
All of my liquids bubbled up on the plastic and the teflon, but neither of the two I did on aluminum bubbled up.Aluminum has a very low electronegativity of 1.5 and so the oil and ethanol both spread out on it. They did this even though they wouldn't on a different surface because aluminum has such a low electronegativity. All the liquids bubbled up on plastic and teflon because both of those are higher in electronegativity, much closer to the liquds, and so they are not attracted to each other.
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