Difference between revisions of "Kauri resin"
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''Agathis australis''; copal kauri (Esp.); kauri gum; kauri copal; New Zealand gum; cowrie; kowrie | ''Agathis australis''; copal kauri (Esp.); kauri gum; kauri copal; New Zealand gum; cowrie; kowrie | ||
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| + | Combustible, burning with a bright flame, dense smoke and strong smell. | ||
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| + | == Physical and Chemical Properties == | ||
Soluble in alcohols, ketones and turpentine. May fluoresce white under short-wave UV light. | Soluble in alcohols, ketones and turpentine. May fluoresce white under short-wave UV light. | ||
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| 1.05 | | 1.05 | ||
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== Additional Information == | == Additional Information == | ||
Revision as of 15:43, 19 May 2020
Description
A medium-hard variety of Copal resin obtained from the kauri pine, Agathis australis, native to New Zealand. Kauri can be collected as a resin or found in fossilized deposits, although both sources became scarce prior to 1930 due to zealous collection methods. Kauri is a pale yellow to reddish brown resin with a pine-like odor. It was widely used in the early 20th century for floor and furniture varnishes (Mayer 1969). Kauri was also used in adhesives, enamels, and linoleum.
Synonyms and Related Terms
Agathis australis; copal kauri (Esp.); kauri gum; kauri copal; New Zealand gum; cowrie; kowrie
Applications
Risks
Combustible, burning with a bright flame, dense smoke and strong smell.
Physical and Chemical Properties
Soluble in alcohols, ketones and turpentine. May fluoresce white under short-wave UV light.
| Melting Point | 182 - 232 |
|---|---|
| Density | 1.05 |
Additional Information
R. Mayer, A Dictionary of Art Terms and Techniques, Harper and Row, New York, 1969.
Sources Checked for Data in Record
- 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. 431
- Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
- Encyclopedia Britannica, http://www.britannica.com Comment: "Kauri Pine." Encyclopædia Britannica. 2 Sept. 2004 .
- Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: http://en.wikipedia.org/wiki/Kauri (Accessed Jan. 15, 2006)
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
- Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000