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00810-4520 — Middle Orange

It is available in more than 90 brilliant matte colors for a wide choice in sensitive graphic reproduction or fine art painting techniques. Its characteristics include covering power, opacity, and high tinting strength with fine flowing texture.

Middle Orange

This color contains the following pigments:

PY73—Hansa Yellow
PY42—Mars Orange
PO13—Vibfast Orange 4051

PY73—Hansa Yellow

Pigment Type

monoazo

Chemical Name

n/a

Chemical Formula

C₁₇H₁₅ClN₄O₅

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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PY42—Mars Orange

Pigment Type

inorganic, earth

Chemical Name

iron oxide

Chemical Formula

Fe₂O₂ or Fe₂O₃ • H₂O

Properties

Mars Orange is a bright, extremely light red and appears almost pinkish in contrast with darker colors. It has incredible tinting strength and opacity. The synthetic form of Mars Orange is made from iron oxides and is cleaner, brighter, and denser than its ochre-based counterparts.

Permanence

Mars Orange has excellent permanence and lightfastness.

Toxicity

Mars Orange has no significant hazards.

History

The word Mars refers to the Roman god of iron and war. Mars Orange has been manufactured as a pigment since the 17^th century.

Alternate Names

n/a

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PO13—Vibfast Orange 4051

Pigment Type

organic

Chemical Name

n/a

Chemical Formula

n/a

Properties

Pigment Orange PO13 is a yellowish orange with high tinting strength.

Permanence

Pigment Orange PO13 has good lightfastness when used at full strength, but it may fade in tints. It is often replaced by PO61, which has lower tinting strength, but better lightfastness.