Bone Black Oil Paint
Rublev Colours Bone Black (also known as “ivory black”) is an opaque, cool black, fine-grained oil paint with good tinting strength.
Rublev Colours Bone Black, also known as ‘bone char’ or ‘animal charcoal,’ is produced by charring animal bones. The bones are heated to high temperatures in the absence of oxygen. It consists mainly of calcium phosphate and a smaller amount of carbon. Ivory black is an artist’s pigment formerly made by grinding charred ivory. Ivory is no longer used because of the expense and because animals that are natural sources of ivory are subject to international control as endangered species. Today, ivory black is considered a synonym for bone black. Among artist pigments, ivory black is considered a higher grade than bone black, containing 15% or more carbon. We use only the highest-grade bone char, containing at least 18 percent carbon. Rublev Colours bone char oil paint is named ‘Bone Black’ because we use the name of the actual pigment for our colors.
Composition and Permanence
| Bone Black | |
| Color: | Black |
| Binder: | Linseed oil |
| Additive(s): | None |
| Pigment Information | |
| Pigment: | Bone Black |
| Pigment Classification: | Natural organic |
| Colour Index: | Pigment Black 9 (77267) |
| Chemical Name: | Hydroxyapatite (calcium phosphate) and carbon |
| Chemical Formula: | Ca5(OH)(PO4)3 and C |
| CAS No. | – |
| Properties | |
| Code: | 903 |
| Series: | 1 |
| Opacity: | Opaque |
| Tinting Strength: | High |
| Drying Rate: | Medium |
| ASTM Lightfastness: | I |
| Permanence: | A |
| Safety Information: | No acute or known chronic health hazards are associated with this product’s anticipated use (most chemicals are not thoroughly tested for chronic toxicity). Protect yourself against potentially unknown chronic hazards of this and other chemical products by keeping them out of your body. Do this by avoiding ingestion, excessive skin contact, and inhaling spraying mists, sanding dust, and vapors from heating. Conforms to ASTM D-4236 |
For a detailed explanation of the terms in the table above, please visit the Composition and Permanence page.
Notes
Some separation of pigment and oil may occur in Rublev Colours Artist Oils, and it is a natural process when no wax or stabilizers are added to the paint to prevent it.
All color swatches on this website are approximations of the actual color of the oil paint. We have carefully matched the color in these pictures on calibrated color monitors to the actual color. However, your results may vary due to the wide variance among color monitors.
Color Swatch Note: The color swatch was created with a thick application of color (left side) and a tint (right side) made with equal parts of color and titanium white, applied to acrylic-primed cotton canvas.
Drawdown Note: The image of the “drawdown” shows a premixed paint film 6 mils (0.006 inches) thick, applied to a standard test card to examine color consistency, opacity, and other qualities. The drawdowns show the color’s full strength (mass tone) on the left and, on the right, mixed with titanium white at a 1:2 ratio. The bottom area of the drawdowns is scraped to show undertones.
| SKU | 820-903 |
|---|---|
| Brand | Rublev Colours |
| Vendor | Natural Pigments |
| Processing Time | Usually ships the next business day. |
| Color | Black |
| Color | Black |
| Pigment Type | Inorganic, Natural |
| Pigment Family / Chemistry | Carbon Blacks |
| Pigment Code | PBk9 |
| Particle Size | Fine |
| Drying Rate | Medium |
| Transparency/Opacity | Opaque |
| Lightfastness | ASTM I |
| Chemical Prohibition | No |
Health & Safety: There are no acute or known chronic health hazards with the anticipated use of this product (most chemicals are not thoroughly tested for chronic toxicity). Protect yourself against potentially unknown chronic hazards of this and other chemical products by avoiding ingestion, excessive skin contact, and inhaling spraying mists, sanding dust, and concentrated vapors from heating. Contact us for further information or consult the SDS for more information. Conforms to ASTM D-4236.
