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Old 12-01-2011, 12:18 PM   #14
DickR
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SIK, that link shows only dynamic and kinematic viscosity. Searching on that site gives this:

http://www.engineeringtoolbox.com/wa...ght-d_595.html

The temperatures are every 10 degrees, but the table does show a maximum in density at "around" 40 F. A better source, such as the ASTM steam tables, gives the density at temperatures more closely spaced.

Water is a strange chemical in many ways, relative to other types of compounds. Density is one strange property, having a maximum somewhat above its freezing point, but that is why deep lakes can freeze over, while the heavier water, above the freezing point, settles down toward the bottom. And of course the density of water gets lower still upon freezing to the solid state, allowing it to float on the surface and not sink.
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