Cobalt Chromite Blue Oil Paint
Rublev Colours Cobalt Chromite Blue is an intense dark blue with greenish undertones when mixed with white. This inorganic pigment of cobalt chromite is often incorrectly named “Cerulean blue” in other oil paint ranges. Cobalt chromite is a semi-transparent, fine-grained color with moderately high tinting strength.
Rublev Colours Cobalt Chromite Blue is an intense dark blue with greenish undertones when mixed with white. This inorganic cobalt chromite blue pigment, which is Colour Index Generic Name (CIGN) Pigment Blue 36 (PB 36), is often incorrectly named “Cerulean blue” (Colour Index PB 35) in other oil paint lines. Cobalt chromite is a semi-transparent, fine-grained color with moderately high tinting strength.
Composition and Permanence
| Cobalt Chromite Blue | |
| Color: | Blue |
| Binder: | Linseed oil |
| Additive(s): | None |
| Pigment Information | |
| Pigment: | Cobalt chromite blue spinel |
| Pigment Classification: | Synthetic inorganic |
| Colour Index: | Pigment Blue 36 (77343) |
| Chemical Name: | Cobalt chromite blue spinel |
| Chemical Formula: | Co(Al,Cr4O4) |
| CAS No. | 68187-11-1 |
| Properties | |
| Code: | 122 |
| Series: | 7 |
| Opacity: | Semi-Transparent |
| Tinting Strength: | High |
| Drying Rate: | Medium |
| Lightfastness: | I |
| Permanence: | A |
| Safety Information: | Based on toxicological reviews, there are no acute or known chronic health hazards with the anticipated use of this product. Always 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. Contact us for further details or consult the MSDS. |
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 full-color strength (mass tone) on the left and, mixed with titanium white at a 1:2 ratio, on the right. The bottom area of the drawdowns is scraped to show undertones.
| SKU | 820-122 |
|---|---|
| Brand | Rublev Colours |
| Vendor | Natural Pigments |
| Processing Time | Usually ships the next business day. |
| Color | Blue |
| Pigment Type | Inorganic, Synthetic |
| Pigment Family / Chemistry | Cobalt Colors |
| Pigment Code | PB36 |
| Particle Size | Very Fine |
| Drying Rate | Medium |
| Transparency/Opacity | Semi-Transparent |
| 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.
