Tung oil—A new southern industry: Ind. and Eng. Chem., 24, 687
✍ Scribed by C
- Book ID
- 104128618
- Publisher
- Elsevier Science
- Year
- 1932
- Tongue
- English
- Weight
- 58 KB
- Volume
- 214
- Category
- Article
- ISSN
- 0016-0032
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✦ Synopsis
A very interesting story of how Aleurites.fardii (Tung Oil Tree) came to America is told by H. A. Gardner. For thirty years the American paint and varnish industry has secured all its tung oil from the Yangtze Valley and other regions of China. Within a relatively few past years over 20,000 acres of trees have been planted in this country which, within a few more years, probably will have increased from 5o,ooo to IOO,OOO acres.
Tung oil is a fatty oil and as such may be compared to other vegetable oils such as linseed, olive and palm oils. However, it differs in consisting principally of the glyceride of eleostearic acid. This acid is a singularly reactive substance and is responsible for the several desirable characteristics of the tung oil. In its natural state in the cells of the tung nut seeds, the oil is practically colorless and neutral in reaction and when removed by cold pressing as practiced in America, it is light in color. The best quality of China oil is of a darker color and may contain up to 7 per cent. free acid.