Holbein Artists' Oil Color - Transparent Brown Oxide, 40 ml tube
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Product Details
- Description:
- Artists' Oil Colors
- Color:
- Transparent Brown Oxide
- Size:
- 40 ml (1.35 oz)
- Format:
- Tube
- No.
- 161
- Mfg #:
- H361B
Colors on Monitors -
Due to differences in users’ monitors, the colors presented are an approximation of the true color.
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Pigment Information
This color contains the following pigments:
PBk7-Lamp Black
PBr7-Burnt Umber
Pigment Name
PBk7-Lamp Black
Pigment Type
inorganic
Chemical Name
carbon
Chemical Formula
C
Properties
Lamp black is a very opaque, heavily staining black pigment that does not have much covering or tinting power. It is typically the most opaque black in watercolor form. Though a very pure black, it tends to muddy slightly in mixtures. Natural sources may be brownish or bluish in tone because of impurities. When used in oil paints, it is one of the slowest drying pigments, and should not be used in underpainting or applied in layers underneath other colors.
Permanence
Lamp Black is very lightfast and absolutely permanent. It is used in all techniques in permanent painting.
Toxicity
<p>Carbon itself is not considered hazardous, however other combustion products that are hazardous are often present as impurities when Lamp Black is produced from natural materials. For this reason, commercial preparations of the pigment should be considered slightly toxic. Avoid skin contact and inhalation. Where such impurities are present, Lamp Black is a possible human carcinogen.</p>
History
Lamp Black is a carbon based black traditionally produced by collecting soot (known as lampblack) from oil lamps. It has been used as a pigment since prehistoric times. It is the black found in Egyptian murals and tomb decorations and was the most popular black for fresco painting until the development of Mars Black.
Pigment Name
PBr7-Burnt Umber
Pigment Type
earth
Chemical Name
iron oxides with manganese silicates or dioxide
Chemical Formula
Fe2O3,MnO2 or Fe2O3+MnO2+nH2O+Si+Al2O3
Properties
Burnt Umber is a more intense reddish brown pigment that results from heating the clay pigment Raw Umber. It has medium to excellent tinting strength and high opacity, and it is quick drying in oil form. Burnt Umber is somewhat more transparent than Raw Umber. It has excellent color properties and can create a variety of subtle, clear tints when mixed with white. It can tend towards chalkiness in dark mixes in oil form, but overall it mixes well with other colors. To create a black color in oil form, mix Burnt Umber with Phthalo Blue or Ultramarine. To achieve a similar color in watercolor form, mix it with Ultramarine or Payne's Gray.
Permanence
Burnt Umber has good permanence.
Toxicity
Burnt Umber itself is considered non-toxic. If contaminated by manganese compounds, it may be highly toxic if inhaled and moderately toxic if ingested.
History
This pigment gets its name from the Latin word umbra, meaning shadow or shade. Its full name is listed as terra di ombra, meaning earth of shadow/shade, due to its original extraction from the area of Umbria, Italy. It has been used as a pigment since prehistoric times. Currently, the finest umber comes from Cyprus.
Safety Data Sheet
UPC Code: 4900669003618
ASIN #: B00XN1EQT4