Once highly prized, this color is now sadly extinct. It was highly transparent and had a golden yellow orange note in masstone with a bright sunshine when spread thinly. Favored by botanical artists for the gradient it offered but loved by all.
Nickel Dioxine Yellow has an ASTM I in oil and a slightly lower rating in watercolor, however Handprint's tests were more favorable.
We were so sad when this was discontinued around 2012, as it was a yellow with a fascinating character- different in masstone than in tints and glazes. Whereas PY150 has a similar behavior from brown to cooler yellow, this color, PY153, gradated from orange to chromatic yellow. It was a very slow drier.
Monona Rossol's work has a section on health problems from nickel pigments in the Artist's Guide to Health and Safety. Her most recent research can be found through her site.
