JAPAN WAX

Description

Japan wax is a tallow obtained from the fruits of the oriental sumac, Rhus succedanea (Japan, Formosa, and Indo-China), R. vemicifera (Japan) and R. trichocarpa (China, Indo-China, India, and Japan). Japan wax is prepared mostly from the mesocarp by hot pressing the immature fruit. Depending upon the method of preparation, the commercial tallow may contain more or less of the kernel fat which alters its melting range. Japan wax may be bleached by exposing flakes to sunlight for some days or weeks.
The wax is unusual in that it contains glycerides of the C19-C23 dibasic acids and also has a particularly high content of tripalmitin. The former are credited with giving Japan wax its characteristic properties of toughness and ability to be kneaded without crumbling.
Uses of Japan wax include the manufacture of candles, wax matches, pomades, creams, polishes, textile finishes and sizing, and lubricant for cordage and leather dressing.

Chemical properties

Pale-yellow solid; tallowlike rancid odor. Contains 10–15% palmatin and other glycerides. Soluble in benzene and naphtha; insoluble in water and in cold alcohol. Combustible.

The Uses of JAPAN WAX

As a substitute for beeswax in wax varnishes or candles, ingredients in plasters, ointments; floor waxes, furniture polish. As a plasticizer in dental impression compounds.

Definition

Extractives and their physically modified derivatives. Rhus succedanea, Anacardiaceae.