Sennelier Oil Pastel - Charcoal

Item #:20038-2131
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Charcoal
Charcoal

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Product Details

Color:
Charcoal
Description:
Oil Pastel
No.
228
Mfg #:
10-132501-228

Pigment Information

This color contains the following pigments:

PBk8-Vine Black

PW6-Titanium White

PBk9-Ivory Black


Pigment Name

PBk8-Vine Black

Pigment Type

inorganic

Chemical Name

carbon

Chemical Formula

C

Properties

Black is a semi-transparent, slightly textured blue-black pigment with excellent hiding power. It has a finer grain than other black pigments, so it spreads better in watercolor. However, it is inferior in intensity, tinting strength, and chemical purity to the major black pigments.

Permanence

Vine Black has superior permanence and lightfastness because carbon absorbs light well.

Toxicity

Vine Black has no significant hazards.

History

Vine Black is a carbon based black traditionally produced by charring desiccated grape vines, stems, and wood from willow trees. These processes have been used since antiquity, though a superior artificial variety was developed in the United States in 1864 to make a black appropriate for watercolors.


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 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 particl

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.


Pigment Name

PBk9-Ivory Black

Pigment Type

charred animal bone

Chemical Name

carbon + calcium phosphate

Chemical Formula

C + Ca3(PO4)2 or C × CaPO4

Properties

Ivory Black is a cool, semi-transparent blue-black with a slight brownish undertone and average tinting strength. It mixes well with any color, and creates a range of dull greens when mixed with yellow. It has good properties for use in oil, can be slow to dry in oil form, and should never be used in underpainting or frescoing. Ivory Black is denser than Lamp Black.

Permanence

Ivory Black is very lightfast and has good permanence, though it is considered the least permanent of the major black pigments.

Toxicity

Ivory Black has no significant hazards.

History

Ivory Black is a carbon based black first named as Elephantium, and described in the 4th century BCE as produced by heating ivory scraps in clay pots to reduce the ivory or bone to charcoal. The deviation in names is because the more expensive varieties of this pigment were made by burning ivory, and the less expensive ones by burning animal bone. In the 19th century, the name Ivory Black was finally permitted to be applied to Carbon Black pigments made from bone. True Ivory Black is rare in modern times due to the protection of ivory, and the synthetic variety produced today was discovered in 1929. Bone Black is produced as an industrial pigment.


Safety Data Sheet

UPC Code: 3046450406433

ASIN #: B00BHY6OV2