Color Swatch created using Heavy application/medium application/50% tint and was applied on Acrylic Primed Canvas (7 oz) material.
This color contains the following pigments:
PY35:1—Cadmium-Barium Yellow
Pigment Type
inorganic
Chemical Name
cadmium zinc lithopone
Chemical Formula
CdSZn + BaSO4
Properties
Cadmium Yellow is brilliant, dense, and opaque, with good tinting strength and very high hiding power. It is the artist’s principal bright yellow and is available in light, medium, and dark shades. The deeper shades appear deep orange and have the greatest tinting strength. It is slow-drying in oil form and is used in both oil and watercolor form. It cannot be mixed with copper-based pigments. A clean Cadmium Orange is created when Cadmium Yellow is mixed with Cadmium Red. Hues vary by brand. Cadmium pigments have been partially replaced by azo pigments, which are similar in lightfastness to the cadmium colors, cheaper, and non-toxic.
Cadmium Yellow PY35:1 shares the properties of Cadmium Yellow PY35, except that it has lower tinting strength.
Permanence
Cadmium zinc lithopone has excellent lightfastness. It shares the permanence of pure cadmium zinc sulfide (Cadmium Yellow PY35). All cadmium pigments have limited weather resistance, and are unsuitable for outdoor applications.
Toxicity
Cadmium Yellow is a known human carcinogen. It is extremely toxic if inhaled and slightly toxic if ingested. Barium sulfate is extremely insoluble in water, and thus is not biologically active. It is used medically as a contrast medium in radiological procedures.
History
Cadmium Yellow PY35:1 is cadmium yellow pigment that contains 15% or more barium sulfate. It is used to create a less expensive alternative to PY35.
Alternate Names
Cadmium Yellow, Cadmium Yellow Light
PY65—Hansa Yellow
Pigment Type
monoazo
Chemical Name
n/a
Chemical Formula
C18H18N4O6
Properties
This Hansa Yellow ranges from reddish yellow to greenish yellow with temperature shifts from cool to warm hues. It has good tinting strength and average to slow drying time.
Permanence
This Hansa Yellow has excellent lightfastness, particularly in the darker shades.
Toxicity
Hansa Yellow has no significant acute hazards, though its chronic hazards have not been well studied.
History
Hansa Yellows were first made in Germany just before WW1 from a series of synthetic dyestuffs called Pigment Yellow. They were intended to be a synthetic replacement for Cadmium Yellow.
Alternate Names
Arylide, Arylide Yellow, Azo, Brilliant Yellow, Monoazo, Monolite Yellow, Permanent Yellow.
