Schmincke Horadam Aquarell Artist Watercolor - Gold Brown, 15 ml tube

Pigment Information

This color contains the following pigments:

PY65-Hansa Yellow

PBr41-Pigment Brown 41

Pigment Name

PY65-Hansa Yellow

Pigment Type

monoazo

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.

Pigment Name

PBr41-Pigment Brown 41

Pigment Type

organic, disazo condensation

Chemical Name

disazo condensation brown

Chemical Formula

Properties

Pigment Brown 41 offers good covering strength and medium tinting strength. It is transparent and heavily staining. These properties are ideal for watercolor painting, where a transparent brown has traditionally been achieved by mixing other pigments.

Permanence

Pigment Brown 41 has very good to excellent lightfastness.

Toxicity

Although no acute toxic effects are known, possible hazards of chronic exposure have not been well studied.

History

Pigment Brown 41 has been used to color paints and plastics.  It one of a series of disazo condensation pigments synthesized and commercialized late in the 20th century.