Winsor & Newton Winton Oil Color - Cadmium Yellow Deep Hue, 37 ml tube

Pigment Information

This color contains the following pigments:

PY65-Hansa Yellow

PO65-Benzimidazolone Orange

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

PO65-Benzimidazolone Orange

Pigment Type

organic, disazo

Chemical Name

azomethine nickel complex

Chemical Formula

Properties

Benzimidazolone Orange (PO65) is a semi-opaque pigment with a dull reddish-orange color.

Permanence

Benzimidazolone Orange (PO65) is considered to have excellent lightfastness.

Toxicity

Benzimidazolone Orange (PO65) is not considered toxic.

History

The Benzimidazolone family of pigments were developed by the German chemical manufacturer Hoechst in the 1950s and 1960s.