Brilliant colors and rich texture of the soft dry pastels signal their high proportion of pure, first class pigments blended with a minimum amount of binders.These round, unwrapped sticks have a soft, smooth, and uniform texture.
Color Swatch created using heavy to light application and was applied on 100 lb (163 gsm) drawing paper material.
bismuth orthovanadate or bismuth vanadium oxide
Bismuth Yellow is an intense, light value, semi-opaque yellow pigment with good tinting strength.
Bismuth Yellow has excellent lightfastness.
Bismuth orthovanadate is harmful if swallowed. It is irritating to the eyes, respiratory system, and skin. Exposure may cause conjunctivitis, rhinitis, and reversible irritation of the respiratory tract. More severe cases may cause bronchitis, bronchospasms, and asthma like disease. It may cause polycythemia, red blood cell destruction and anemia, albuminuria and hematuria, gastrointestinal disorders, nervous complaints, and severe cough. However, bismuth vanadium oxide is completely insoluble in water. This limits absorption and biological activity. In waterbased paints, it must be suspended in a binder vehicle. Because of low absorption, such clinical symptons are primarily limited to cases of long-term occupational exposure.
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.
Permanent Lemon Yellow, Vanadium Yellow.
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.
This Hansa Yellow has excellent lightfastness, particularly in the darker shades.
Hansa Yellow has no significant acute hazards, though its chronic hazards have not been well studied.
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.
Arylide, Arylide Yellow, Azo, Brilliant Yellow, Monoazo, Monolite Yellow, Permanent Yellow.
® Caran d'Ache is a registered trademark.