ZAFFER
or ZAFFRE.
Partially finished Smalt;
Smalt in a stage before its final process.
ZINC CHROME.
Zinc
yellow.
ZINC GREEN.
Cobalt
green. Also a
mixture of Zinc
Yellow, Prussian
Blue (PB 27)
(steel or Milori, not the reddish shades), and Barytes.
ZINC
OXIDE.
Zinc white (PW 4).
ZINC
WHITE.
(PW 4).
common names: Zinc white, Chinese
white, Permanent
White.
Zinc oxide. Zinc White as a paint pigment is free from the two
drawbacks of Flake
White. It is
not poisonous and since zinc sulfide is white, any action that sulfur
fumes might have on zinc oxide in a painting will not alter its color.
In oil it has a harsher, colder, or bluer effect and is very much less
opaque than Flake White. It is employed in oil only where its lack of
great opacity is either desirable or of no detriment. Zinc White is a
reactive pigment in oil and unites with it but not in the same way as
Flake White does. It tends to make a brittle, hard film in comparison
with the tough, flexible film of white lead. Poppy-oil films are
definitely less permanent with zinc than with Flake White.
First made and sold in France toward the end of the eighteenth
century; introduced commercially in America during the first quarter
of the nineteenth century; successfully made in a large-scale
industrial manner in 1845; began to be accepted as a general
industrial pigment around 1860; but not very widely adopted by artists
as an oil color until the twentieth century. However, under the name
of Chinese white it was almost immediately put into use as an artists'
watercolor; one English firm has had it on the market as a prepared
watercolor white since 1834.
Oil film characteristic: very slow drying. Hard, brittle.
Vehicle compatibility: Linseed oil, alkyd, acrylic, watercolor,
gouache, tempera, casein, encaustic, fresco, pastel.
Dry characteristic: W (cool)
Hazard: Avoid dust. Zinc may be a very slight harzard in dry
form.
ZINC
YELLOW.
Zinc chromate. A pale, semiopaque yellow with a greenish tone. Not
permanent, nearly obsolete, rare. Rather poisonous. Somewhat soluble
in water; therefore generally considered to be not so good as barium
yellow for artists' use. Some of the best and palest primrose shades
contain much zinc oxide; few are the pure chromate. Introduced by
Murdock, Scotland, 1847.
ZINNOBER.
Vermilion
(PR 106). When the term "zinnober" is applied to any other
color - for instance, to mixed greens - it is being used merely as a
fancy name.
Click
here to see and read about the mineral Cinnabarite.
ZIRCON WHITE.
Zirconium oxide. Used to impart whiteness and opacity to ceramic
glazes; not in use as a paint pigment.
Click
here to see and read about the mineral Zircon.
