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PY150—Nickel Azo Yellow

Pigment Type

inorganic

Chemical Name

nickel azomethine yellow

Chemical Formula

C₃₀H₁₈Cl₂N₆NiO₄

Properties

Nickel Azo Yellow is a transparent, moderately staining yellow pigment with high tinting strength. It is considered a good color match in botanical and landscape painting for natural gamboge (NY24), a historic yellow pigment with fair to poor lightfastness.

Permanence

Nickel azomethine yellow has excellent lightfastness.

Toxicity

Nickel azo yellow pigment is mildly toxic, and is often labeled as hazardous. Avoid respiratory and skin exposure to pigment dust. It should be disposed of properly with other hazardous wastes, not washed down the sink. However, the contribution of artist pigments to levels of nickel metal complexes in the environment is almost insignificant. Nickel is often present in the environment naturally. Nickel is used heavily in steelmaking, and in many industrial processes and products.

History

Nickel azomethine yellow has been developed as an artist pigment becasue it is a close match for gamboge, a historic yellow.

Alternate Names

Gamboge Hue, New Gamboge.