Mount Vision Handmade Pastel - Rose Violet 21

Pigment Information

This color contains the following pigments:

PV15-Ultramarine Violet

PR185-Permanent Carmine

PW6-Titanium White

Pigment Name

PV15-Ultramarine Violet

Pigment Type

inorganic

Chemical Name

complex silicate of sodium and aluminum with sulfur

Chemical Formula

H2Na(4-6)Al6Si6O24S2

Properties

Ultramarine Violet is a semi-transparent, dull purple to pale violet with low tinting strength. As a pigment, it is weak in most oil applications, but it performs better in water-based mediums, pastels, and chalks. It is generally the bluest of the violet pigments, although there can be significant differences in color across brands. It is not suitable for fresco work and does not mix well with yellows. Ultramarine Violet is a variant of Ultramarine Blue, and their pigment properties are identical.

Permanence

Ultramarine Violet has excellent permanence and lightfastness.

Toxicity

Ultramarine Violet has no significant hazards.

History

Unknown.

Pigment Name

PR185-Permanent Carmine

Pigment Type

organic, monoazo

Chemical Formula

C27H24N6O6S

Properties

Permanent Carmine (HF4C) is a non-staining, transparent red pigment that is similar to natural carmine in its hue and other properties.

Permanence

Permanent Carmine (HF4C) has excellent lightfastness for a transparent red pigment.

Toxicity

Permanent Carmine (HF4C) has no acute toxicity.

History

Permanent Carmine (HF4C) has been developed as a replacement for Carmine, a transparent red derived from the cochineal insect. It is one of a large group of azo pigments that were discovered and developed by Hoechst in the 1950s and 1960s. In comparison with natural carmine derived from cochineal, it is far less expensive, and offers superior lightfastness.

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.