Difference between revisions of "Gurjun balsam"
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gurgina balsam; goorjun balsam; wood oil; East Indian copaiba balsam | gurgina balsam; goorjun balsam; wood oil; East Indian copaiba balsam | ||
| − | == | + | ==Physical and Chemical Properties== |
| − | Soluble in benzene, chloroform, ether. Slightly soluble in ethanol. Insoluble in water. Acid no. 5-15. Saponification no. 10-20. | + | * Soluble in benzene, chloroform, ether. |
| + | * Slightly soluble in ethanol. | ||
| + | * Insoluble in water. | ||
| + | * Acid no. 5-15. | ||
| + | * Saponification no. 10-20. | ||
| + | * Density = 0.955-0.965 g/ml | ||
| + | * Refractive Index = 1.510-1.516 | ||
| + | * Boiling Point = 255 C | ||
| − | + | ==Resources and Citations== | |
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* Thomas Gregory, ''The Condensed Chemical Dictionary'', Reinhold Publishing, New York, 3rd ed., 1942 | * Thomas Gregory, ''The Condensed Chemical Dictionary'', Reinhold Publishing, New York, 3rd ed., 1942 | ||
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* ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 974 | * ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 974 | ||
| − | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "Dipterocarpaceae." | + | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "Dipterocarpaceae." Accessed 7 Apr. 2005. |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 09:59, 30 August 2022
Description
A light brown oleoresin obtained from any of several species of Dipterocarpus trees native to India, China and southeast Asia. Gurjun balsam is a transparent, thick liquid and has a greenish fluorescence. It has been used in varnishes and inks, as a waterproofing agent and as a wood preservative. Gurjun balsam was called wood oil prior to the 19th century.
Synonyms and Related Terms
gurgina balsam; goorjun balsam; wood oil; East Indian copaiba balsam
Physical and Chemical Properties
- Soluble in benzene, chloroform, ether.
- Slightly soluble in ethanol.
- Insoluble in water.
- Acid no. 5-15.
- Saponification no. 10-20.
- Density = 0.955-0.965 g/ml
- Refractive Index = 1.510-1.516
- Boiling Point = 255 C
Resources and Citations
- Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 384
- Susan E. Schur, Conservation Terminology: A review of Past & Current Nomenclature of Materials, Technology and Conservation, Spring (p.34-39); Summer (p.35-38); Fall (p.25-36), 1985
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 974
- Encyclopedia Britannica, http://www.britannica.com Comment: "Dipterocarpaceae." Accessed 7 Apr. 2005.