Ouricury wax
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Description
A vegetable wax obtained from the leaves of the palm tree, Cocos coronapa, found in northeastern Brazil. Ouricury wax is very similar to carnauba, except that it has a greenish brown color that is difficult to bleach. Ouricury wax contains about 6% triterpenes. It is used as an inexpensive substitute for carnauba and is blended with carnauba to increase gloss.
Synonyms and Related Terms
Cocos coronapa; urucury
Risks
- Combustible.
Physical and CHemical Properties
- Acid number = 3.4-21.1
- Iodine value = 6.9-7.8
- Saponification value = 61.8-85.8
- Melting Point = 79-94 C
- Density = 0.970-1.053 g/ml
Comparisons
Resources and Citations
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 148; melting point = 85C, acid number = 10.6, iodine value = 16.9, saponification value = 78.8
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- John S. Mills, Raymond White, The Organic Chemistry of Museum Objects, Butterworth Heineman, London, 2nd ed., 1994
- CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: melting point=79.0-93.8, density=1.053, iodine value=6.9-7.8, acid value=3.4-21.1, saponification value=61.8-85.8