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PO43—Perinone Orange

Pigment Type

vat, anthraquinone

Chemical Name

n/a

Chemical Formula

C₂₆H₁₂N₄O₂

Properties

Perinone Orange is a strong, clean, reddish orange pigment classified as a vat pigment. It has an average drying time.

Permanence

Perinone Orange has excellent lightfastness properties.

Toxicity

Perinone Orange is not considered toxic.

History

Unknown.

Alternate Names

Perionone Orange.

PR188 —Naphthol Red

Pigment Type

organic monoazo

Chemical Name

n/a

Chemical Formula

C₃₃H₂₄Cl₂N₂O₆

Properties

This Naphthol Red is yellowish, with a high tinting strength and average drying time. It produces warmer shades and tints.

Permanence

This Naphthol Red has excellent lightfastness, though it is generally not considered adequate for exterior use.

Toxicity

Naphthol Reds are not considered toxic.

History

Naphthol pigments are actually dyes that are "laked" to form pigments. First developed by the German chemical company Hoechst A.G. before World War I, their use in artist paints began in the 1920s.

Alternate Names

Naphthal, Naphthol Bordeaux, Naphthol Carbamide, Naphthol Carmine, Permanent Carmine, Permanent Red.