Difference between revisions of "Bitumen"
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| − | [[File:1993.775-SC31053.jpg|thumb| | + | [[File:SC28609.jpg|thumb|Egyptian leopard in bitumen covered wood<br>MFA# 03.1137]] |
| + | [[File:1993.775-SC31053.jpg|thumb|Human effigy<br>MFA# 1993.775]] | ||
== Description == | == Description == | ||
| − | A common name for the organic, or hydrocarbon, portion of [ | + | A common name for the organic, or hydrocarbon, portion of [[asphalt]]. Bitumen is a dark brown or black solid to semisolid material. It was used by ancient Egyptians as an adhesive. Bitumen is currently is used in hot-melt adhesives, coating, paints, sealants, roofing and road coating. The name bitumen has been used as a synonym for [[asphaltum]], [[tar]], and [[pitch]] and was also used as a commercial product name for a transparent, brown artists pigment made from asphaltum. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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Bitumen (Deut.); bitume (Fr.); bitumen (Esp.); bitume (It.); betume (Port.); asphaltum; tar; pitch; asphaltum; tar; pitch; | Bitumen (Deut.); bitume (Fr.); bitumen (Esp.); bitume (It.); betume (Port.); asphaltum; tar; pitch; asphaltum; tar; pitch; | ||
| − | + | [[[SliderGallery rightalign|Gilsonite (bitumen) Gettens.PNG~FTIR (MFA)]]] | |
| − | + | == Risks == | |
| − | + | * Combustible. | |
| − | + | * Softens at slightly elevated temperatures. | |
| − | + | * Ages poorly in dried oil films resulting in movement, disfigurement and/or cracks. | |
| − | |||
| − | |||
| − | == | + | ==Physical and Chemical Properties== |
| − | + | * Soluble in carbon disulfide. | |
| + | * Refractive Index = 1.64 - 1.66 | ||
| − | + | ==Resources and Citations== | |
| − | + | * R.White "Brown and Black Organic Glazes, Pigments and Paints" ''National Gallery Technical Bulletin'', 10:58-71, 1986. | |
| − | + | * Georgiana Languri, Molecular studies of Asphalt, Mummy and Kassel earth pigments, MOLART report 2004, available through Archetype Publications, London. | |
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* John S. Mills, Raymond White, ''The Organic Chemistry of Museum Objects'', Butterworth Heineman, London, 2nd ed., 1994 | * John S. Mills, Raymond White, ''The Organic Chemistry of Museum Objects'', Butterworth Heineman, London, 2nd ed., 1994 | ||
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* ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998 | * ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998 | ||
| − | * Art and Architecture Thesaurus Online, | + | * Art and Architecture Thesaurus Online, https://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000 |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 15:15, 7 May 2022
Description
A common name for the organic, or hydrocarbon, portion of Asphalt. Bitumen is a dark brown or black solid to semisolid material. It was used by ancient Egyptians as an adhesive. Bitumen is currently is used in hot-melt adhesives, coating, paints, sealants, roofing and road coating. The name bitumen has been used as a synonym for Asphaltum, Tar, and Pitch and was also used as a commercial product name for a transparent, brown artists pigment made from asphaltum.
Synonyms and Related Terms
Bitumen (Deut.); bitume (Fr.); bitumen (Esp.); bitume (It.); betume (Port.); asphaltum; tar; pitch; asphaltum; tar; pitch;
_Gettens.PNG)
Risks
- Combustible.
- Softens at slightly elevated temperatures.
- Ages poorly in dried oil films resulting in movement, disfigurement and/or cracks.
Physical and Chemical Properties
- Soluble in carbon disulfide.
- Refractive Index = 1.64 - 1.66
Resources and Citations
- R.White "Brown and Black Organic Glazes, Pigments and Paints" National Gallery Technical Bulletin, 10:58-71, 1986.
- Georgiana Languri, Molecular studies of Asphalt, Mummy and Kassel earth pigments, MOLART report 2004, available through Archetype Publications, London.
- John S. Mills, Raymond White, The Organic Chemistry of Museum Objects, Butterworth Heineman, London, 2nd ed., 1994
- R. J. Gettens, G.L. Stout, Painting Materials, A Short Encyclopaedia, Dover Publications, New York, 1966
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 76
- Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
- Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
- The Dictionary of Art, Grove's Dictionaries Inc., New York, 1996
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Henry Hodges, Artifacts: An Introduction to Early Materials and Technology, Ronald P. Frye, Kingston, Canada, 1988
- Thomas C. Jester (ed.), Twentieth-Century Building Materials, McGraw-Hill Companies, Washington DC, 1995
- Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
- Art and Architecture Thesaurus Online, https://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000