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Description

Color Swatch

Pigment Info

01723-4160 — Indian Yellow

Premium pigments sourced from around the world are combined with a highly refined medium to produce this superior professional quality watercolor. ShinHan features clear color tones, exceptional brightness and transparency, and superior light stability.

Indian Yellow

This color contains the following pigments:

PY83—Diarylide Yellow 83
PY95—Disazo Condensation Yellow

PY83—Diarylide Yellow 83

Pigment Type

organic, disazo

Chemical Name

n/a

Chemical Formula

C₃₆H₃₂Cl₄N₆O₈

Properties

Diarylide Yellow is a semi-opaque, moderately staining, intense deep reddish yellow pigment with good tinting strength.

Permanence

Diarylide Yellow 83 has very good lightfastness and permanence. However, it can fade in tints, so some artists do not consider it suitable as an artists’ color. Many other diarylide yellow pigments are reported to have fair to poor lightfastness, and some are completely fugitive. Diarylide Yellow 83 is reputed to be one of the most permanent of the entire group.

Toxicity

Diarylide Yellow has no significant acute hazards, but chronic hazards have not been well studied.

History

Diarylide Yellow comes from a family of azo pigments called Diarylide. These yellow hued pigments were developed around 1940 and are very important in printing inks.

Alternate Names

Benzidine Yellow, Diazo Yellow.

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PY95—Disazo Condensation Yellow

Pigment Type

organic, disazo condensation

Chemical Name

n/a

Chemical Formula

n/a

Properties

Pigment PY95 is a semi-transparent reddish yellow pigment with high tinting strength, slightly less reddish in hue than the popular PY83.

Permanence

For a yellow organic pigment, Disazo Condensation Yellow 95 has very good lightfastness, although its lightfastness is not as good as that of red disazo condensation pigments.