Difference between revisions of "Turpentine (gum)"
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== Description == | == Description == | ||
| − | A sticky, viscous yellow sap obtained from conifers. Gum turpentine is also called [ | + | A sticky, viscous yellow sap obtained from conifers. Gum turpentine is also called [[gum_thus|gum thus]] to avoid confusion with the volatile gum spirits of turpentine that is obtained from the steam distillation of the sap. The crude turpentine contains about 65 percent rosin (solid residue) and 18 percent [[turpentine (oil)|oil of turpentine]] (volatile portion). |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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resina de confera (Esp.); gum thus; crude turpentine | resina de confera (Esp.); gum thus; crude turpentine | ||
| − | == | + | ==Physical and Chemical Properties== |
| − | Soluble in ethanol, chloroform, ether, glacial acetic acid.Insoluble in water. | + | Soluble in ethanol, chloroform, ether, glacial acetic acid. Insoluble in water. |
| − | == | + | ==Resources and Citations== |
* Richard S. Lewis, Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993 | * Richard S. Lewis, Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993 | ||
Latest revision as of 11:15, 22 June 2022
Description
A sticky, viscous yellow sap obtained from conifers. Gum turpentine is also called Gum thus to avoid confusion with the volatile gum spirits of turpentine that is obtained from the steam distillation of the sap. The crude turpentine contains about 65 percent rosin (solid residue) and 18 percent oil of turpentine (volatile portion).
Synonyms and Related Terms
resina de confera (Esp.); gum thus; crude turpentine
Physical and Chemical Properties
Soluble in ethanol, chloroform, ether, glacial acetic acid. Insoluble in water.
Resources and Citations
- Richard S. Lewis, Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 9957
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998