Holbein has developed a range of artist-quality soft pastels that offer great covering and blending power because of their soft powder richness. Individually wrapped sticks feature a square shape for versatility - use the flat sides or sharp edges!
Color Swatch created using heavy to light application and was applied on 100 lb (163 gsm) drawing paper material.
cobalt titanium oxide
Cobalt Titanium Oxide is a low intensity color with a weak tinting strength, similar to Cobalt Blue. It has an average to fast drying time.
Cobalt Green has excellent permanence and lightfastness.
Cobalt Green is considered toxic due to its cobalt component. Do not breathe its dust.
Since ancient times, smalt blue has been used to color glass and ceramics. Cobalt salts, which give smalt its characteristic blue color, were identified in the 18th century. Techniques for manufacturing various cobalt salts, offering a range of blues and greens, were developed in the 19th century.
Cobalt Teal, Cobalt Turquoise, Light Green Oxide
Titanium White is the most brilliant of the white pigments. It is considered an all purpose oil color useful in all techniques and the best all around white. Its masstone is neither warm nor cool, placing it somewhere between Lead White and Zinc White. It is less prone to cracking and yellowing than Lead White, but it still yellows easily. Titanium White dries slowly in oil form, more slowly than Lead White but more quickly than Zinc White. It is opaque in oil and acrylic forms and semi-opaque in watercolor form. This pigment has good chemical stability, and its tinting strength is superior to both Lead White and Zinc White.
Titanium White has excellent permanence and lightfastness.
Titanium dioxide is highly stable and is regarded as completely non-toxic. Animal studies give no indiciation that it is absorbed biologically, even after long periods of exposure. The primary safety concern is with inhalation of fine pigment dust particles. Titanium White, if inhaled in large amounts over the course of several years, may cause a benign pneumoconiosis that is visible on x-rays. The National Institute of Occupational Safety and Health (NIOSH) considers fine titanium dioxide particles, if inhaled, to be a human carcinogen. The primary concern for artists is to avoid exposure to fine particulate dust from raw pigments.
Titanium is the ninth most abundant element in the Earth's crust, however mineral deposits that are economical to mine are less common. Titanium dioxide was first discovered in 1821, although it could not be mass produced until 1919. Widespread use of the pigment began in the 1940s. Since that time, it has become the most commonly used white pigment. The name comes from the Latin word Titan, the name for the elder brother of Kronos and ancestor of the Titans, and from the Greek word tito, meaning day or sun.
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