Due to differences in users’ monitors, the colors presented are an approximation of the true color.
PY74-Hansa Yellow
PY184-Bismuth Yellow
PY74-Hansa Yellow
monoazo
C18H18N4O6
Pigment PY74 is one of the most commercially important pigments of the Hansa Yellow group, considered superior to many others in its class based on both tinting strength and lightfastness. Several PY74 grades with different particle sizes are available. Grades with finer particle size are more brilliant and transparent. Pigment PY74 ranges from reddish yellow to greenish yellow, with temperature shifts from cool to warm hues. It has high tinting strength and average to slow drying time.
This Hansa Yellow has better lightfastness that other yellow monoazo pigments, particularly in the darker shades.
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.
PY184-Bismuth Yellow
inorganic
bismuth orthovanadate or bismuth vanadium oxide
BiVO4
Bismuth Yellow is an intense, light value, semi-opaque yellow pigment with good tinting strength.
Bismuth Yellow has excellent lightfastness.
Bismuth orthovanadate occurs naturally in several minerals. Although it was synthesized in the 1920s, it was not developed as a commercial pigment until the 1970s.
UPC Code: 3046451980475