lac wax
Definition
Noun A hard, brittle wax that is a natural component of shellac. It is separated from shellac resin due to its property of being insoluble in alcohol.
Usage
"Lac wax" is a technical term used primarily in industrial and chemical contexts. It refers to the specific waxy substance obtained as a byproduct during the processing of shellac.
Examples
- The purification process yields lac wax as a residue.
- Lac wax is valued for its hardness and high melting point in certain formulations.
- Unlike shellac resin, lac wax does not dissolve in ethanol.
Advanced Usage
- Industrial Separation: The term is often used when describing the refining of crude shellac, where alcohol-insoluble components like lac wax are filtered out.
- Property Specification: It is used to specify a material's characteristics, e.g., "coated with a layer containing lac wax."
Variants and Related Words
- Shellac: The resinous secretion from which lac wax is derived.
- Bleached lac wax: A purified and decolorized form of lac wax.
Synonyms
- Shellac wax (a direct synonym).
- Insect wax (a broader, less specific category that includes lac wax).
Notes
"Lac wax" is a compound noun. The word "lac" alone refers to the resinous secretion or the insect that produces it. The term specifically denotes the waxy fraction isolated from it.
Noun
-
a hard wax separated from shellac by its insolubility in alcohol
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