Difference between revisions of "Density"
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== Description == | == Description == | ||
| − | A measurement of the | + | A measurement of the mass per unit volume of a material. Density is usually expressed as grams per cubic centimeter (g cm-3) for solids and liquids. The density of gases is generally expressed as grams per liter (g l-1). In practical term, a high density material is usually heavy, such as baryum, bismuth, gold, lead, platinum. Aluminium, carbon, magnesium, porous materials, such as a foam or paper will have a low density. |
| + | |||
| + | The term [[optical density]] is also used to refer to the optical opacity, or blackness, of a material like an exposed and developped photographic or radiographic film. | ||
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
| − | + | masse volumique (Fr.) | |
| − | == | + | ==Resources and Citations== |
| − | * | + | * W. M. Haynes, Handbook of Chemistry and Physics, 94th Edition, CRC Press, Boca Raton, FL (2013) |
| − | * | + | * Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993 |
| − | * | + | * Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982 |
| − | * | + | * Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997 |
| − | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "density." | + | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "density." Accessed 17 Nov. 2004 . |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 12:10, 18 July 2022
Description
A measurement of the mass per unit volume of a material. Density is usually expressed as grams per cubic centimeter (g cm-3) for solids and liquids. The density of gases is generally expressed as grams per liter (g l-1). In practical term, a high density material is usually heavy, such as baryum, bismuth, gold, lead, platinum. Aluminium, carbon, magnesium, porous materials, such as a foam or paper will have a low density.
The term Optical density is also used to refer to the optical opacity, or blackness, of a material like an exposed and developped photographic or radiographic film.
Synonyms and Related Terms
masse volumique (Fr.)
Resources and Citations
- W. M. Haynes, Handbook of Chemistry and Physics, 94th Edition, CRC Press, Boca Raton, FL (2013)
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
- Encyclopedia Britannica, http://www.britannica.com Comment: "density." Accessed 17 Nov. 2004 .