Sennelier Watercolour Ml S1 Indian Yellow (517)

Indian Yellow (517) Benzimidazolone Yellow is a pigment with dull tints and an average drying time. Nickel dioxine yellow is a semi-transparent, lightly staining yellow pigment with high tinting strength, although less than that of the diarylides. It is considered a good colour match for Indian Yellow, a historic pigment no longer available. Drying time is average.

Pigment Name: PY154—Benzimidazolone Yellow.

Permanence: Benzimidazolone Yellow has excellent lightfastness.

Toxicity: Benzimidazolone Yellow is not considered toxic.

History: The benzimidazolone group of pigments was developed and patented in 1960 by Hoechst A.G., a German chemical manufacturer that was a forerunner of the pharmaceutical company Aventis.

Alternate Names: Benzimidazolone.

PY153—Nickel Dioxine Yellow. Nickel dioxine yellow is a semi-transparent, lightly staining yellow pigment with high tinting strength, although less than that of the diarylides. It is considered a good colour match for Indian Yellow, a historic pigment that is no longer available. Drying time is average.

Permanence: Nickel Dioxine Yellow has excellent lightfastness.

Toxicity: Nickel metal is toxic and may irritate skin.

History: Unknown.

Alternate Names: Dioxine Yellow Nickel.