Winsor & Newton Professional Watercolor - Naples Yellow, 5 ml Tube

Pigment Information

This color contains the following pigments:

PBr24-Chrome Antimony Titanate

PW6-Titanium White

Pigment Name

PBr24-Chrome Antimony Titanate

Pigment Type

inorganic

Chemical Name

chrome antimony titanate

Properties

Chrome Antimony Titanate is a staining, opaque yellowish brown pigment. It is often used to replace the original Naples Yellow or Chrome Yellow, both of which are highly toxic pigments.

Permanence

Chrome Antimony Titanate has excellent lightfastness and weatherfastness.

Toxicity

Chrome Antimony Titanate has negligible acute toxicity. In testing with rabbits, it was shown to be minimally irritating to the skin and eyes. Since it has the hexavalent structure of a chromium yellow, whether Chrome Antimony Titanate is a potential carcinogen.

History

Chrome Antimony Titanate is used in ceramics, plastics, and industrial coatings.

Pigment Name

PW6-Titanium White

Pigment Type

inorganic

Chemical Name

titanium dioxide

Chemical Formula

TiO2

Properties

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.

Permanence

Titanium White has excellent permanence and lightfastness.

Toxicity

Titanium dioxide is highly stable and is regarded as non-toxic.

History

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.