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Note that the especially high molar values, as for paraffin, gasoline, water and ammonia, result from calculating specific heats in terms of moles of molecules. If specific heat is expressed per mole of atoms for these substances, none of the constant-volume values exceed, to any large extent, the theoretical Dulong–Petit limit of 25 J⋅mol ...
(20 °C) 21.45 g/cm 3 — Vines, R.F. The Platinum Metals and their Alloys. New York: The International Nickel Company, Inc., 1941: 16. — "Values ranging from 21.3 to 21.5 gm/cm 3 at 20 °C have been reported for the density of annealed platinum; the best value being about 21.45 gm/cm 3 at 20 °C." 21.46 g/cm 3 — Rose, T. Kirke.
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Density of pure water at 60 °F = / or / [8] Note: There is no universal agreement on the exact density of pure water at various temperatures since each industry will often use a different standard. For example the, USGS says it is 0.99907 g/cm 3 . [ 9 ]
Sodium hydroxide is insoluble in ether and other non-polar solvents. Similar to the hydration of sulfuric acid, dissolution of solid sodium hydroxide in water is a highly exothermic reaction [17] where a large amount of heat is liberated, posing a threat to safety through the possibility of splashing. The resulting solution is usually colorless ...
30 silicon steel foils each of thickness 0.0172 inches (0.4368 mm); density 7.79 g cm −3; measured near a temperature of 358.2 K under pressure in the range 0 — 125 psi: 0 psi 0.496 w m −1 K −1
Values are given in terms of temperature necessary to reach the specified pressure. Valid results within the quoted ranges from most equations are included in the table for comparison.
For the equivalent in degrees Fahrenheit °F, see: Boiling points of the elements (data page) Some values are predictions Primordial From decay Synthetic Border shows natural occurrence of the element