Schmincke Mussini Oil Color - Transparent, Cadmium Red Middle, 35 ml tube

Pigment Information

This color contains the following pigments:

PW1-Barium Sulfate

PR108-Cadmium Red

Pigment Name

PW1-Barium Sulfate

Pigment Type

inorganic

Chemical Name

barium sulfate

Chemical Formula

BaSO4

Properties

Barium Sulfate is a low tinting strength neutral white, often used as an extender.

Permanence

Barium Sulfate has excellent lightfastness.

Toxicity

Although barium is a heavy metal and is toxic, barium sulfate has very low solubility in water, and is not easily absorbed biologically. Barium sulfate is used as a contrast medium in radiology.

History

Barium sulfate is the principle component of baryte, a common mineral. It has many industrial uses. John Dalton's discovery (1803) of a process to reduce barium sulfate to barium sulfide was instrumental in the development of the theory of atoms.

Pigment Name

PR108-Cadmium Red

Pigment Type

inorganic, cadmium

Chemical Name

cadmium sulfide and cadmium selenide

Chemical Formula

CdS x CdSe

Properties

Cadmium Red is a bright, warm red that ranges in shade from orange-red to maroon and is available in light, medium, and dark versions. It is strong and opaque, with good tinting strength. Cadmium Red dries slowly. It grays down when mixed with white, mixes well with blues to create a range of browns, and mixes well with Cadmium Yellow to create a strong orange. It also works well in neutral mixes. Cadmium pigments have been partially replaced by azo pigments, which are similar in lightfastness to the cadmium colors, cheaper, and non-toxic. Hues vary by brand. Cadmium Red is usually available in either a pure grade or a cadmium-barium mix. The cadmium-barium mix has the same permanence as pure Cadmium Red, but it has a lower tinting strength.

Permanence

Cadmium Red is lightfast and permanent in most forms, but like many cadmium pigments, it will fade in fresco or mural painting. Its improved lightfastness has helped it to replace Vermilion on the artist’s palette.

Toxicity

Cadmium Red is a known human carcinogen. It is extremely toxic if inhaled and slightly toxic if ingested.

History

Cadmiums get their names from the Latin word cadmia meaning zinc ore calamine, and the Greek word kadmeia, meaning Cadmean earth, first found near Thebes, the city founded by the Phoenician prince Cadmus. Metallic cadmium was discovered in 1817 by Friedrich Strohmeyer, but Cadmium Red was not introduced until 1907 in Germany.