Sennelier Watercolour S1 Ivory Black (755) 21 ml

Ivory Black is a cool, semi-transparent blue-black with a slight brownish undertone and average tinting strength. It mixes well with any colour 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.

Chemical Name: carbon + calcium phosphate.

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

Toxicity: Ivory Black has no significant hazards.

History: Ivory Black is a carbon-based black first named 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 bones. In the 19th century, the name Ivory Black was finally permitted to be applied to Carbon Black pigments made from bone. Genuine 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 made as an industrial pigment.

Alternate Names: Animal Black, Blue Black, Bone Black. Paris Black is an inferior grade of Ivory Black. It was incorrectly labelled as Frankfort Black.