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Description

Color Swatch

Pigment Info

00414-4493 — Diarylide Yellow

Made from same pigments and linseed oil as Grumbacher Pre-Tested Oils. Can be intermixed with other oils or mediums. Thin and clean-up with water. Tubes. Also wooden Sketchbox Set, Sampler Set, and Intro Set.

Diarylide Yellow

This color contains the following pigments:

PY65—Hansa Yellow
PW5—Lithopone

PY65—Hansa Yellow

Pigment Type

monoazo

Chemical Name

n/a

Chemical Formula

C₁₈H₁₈N₄O₆

Properties

This Hansa Yellow ranges from reddish yellow to greenish yellow with temperature shifts from cool to warm hues. It has good tinting strength and average to slow drying time.

Permanence

This Hansa Yellow has excellent lightfastness, particularly in the darker shades.

Toxicity

Hansa Yellow has no significant acute hazards, though its chronic hazards have not been well studied.

History

Hansa Yellows were first made in Germany just before WW1 from a series of synthetic dyestuffs called Pigment Yellow. They were intended to be a synthetic replacement for Cadmium Yellow.

Alternate Names

Arylide, Arylide Yellow, Azo, Brilliant Yellow, Monoazo, Monolite Yellow, Permanent Yellow.

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PW5—Lithopone

Pigment Type

inorganic

Chemical Name

coprecipitated zinc sulphide and barium sulphate

Chemical Formula

Zn + BaSO₄

Properties

Lithopone is a low tinting strength, semi-transparent white pigment that is often used as a filler or extender in other colors, or as the base for laked pigments.

Permanence

Lithopone is absolutely permanent and lightfast.

Toxicity

Lithopone is not toxic.

History

Lithopone was discovered by G.F. de Doubet in 1850. It was developed commercially in the 1870s as a substitute or supplement for lead carbonate, to overcome the many shortcomings of white lead pigment, including toxicity, poor weathering, and darkening in the presence of sulfur compounds. It is used most often in interior paints and enamels. Its use as a white pigment has been superceeded in many applications by titanium dioxide.