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Unlike animal origin blacks, charcoal blacks have a very characteristic dark tone anthracite (charcoal gray), with some blueish under-tone
Physical properties: Single-pigment, 70% Carbon C, Colour Index PBk 8, refractive index of 1,84, <70 μm, average particle size , density 1500 kg / m3,
More than 15.000 years ago our ancestors began to use colors to decorate the cave walls. These were earth pigments, yellow and red ochre, white chalk and carbon black obtained by charring twigs. Ochres are still today part of a basic painter’s palette.
Black was probably the first color. There is nothing simpler than discovering that cooled burnt sticks could make marks.Vine black was known since prehistoric times and used extensively by medieval and Renaissance artists. Vine black was traditionally produced by charring desiccated grape vines and stems.
Carbon black is used today in photocopier and laser printer toner.Carbon black is easy to prepare and has excellent hiding power. The resulting charcoal is also used in sticks for drawing.
Este pigmento ya lo conocían los romanos y le llamaban Atramentum. También solía fabricarse quemando huesos de melocotón.
(*) All dry, powder-form pigments represent a hazard in that they can be inhaled. It is imperative when handling dry pigments that the user wears appropriate protection. An indication is given of the relative health hazard of each pigment based on the present state of knowledge.
Do not inhale pigments / keep out of reach of children / read the Material Safety Data Sheet.