A J Ludlow Professional Watercolour Cobalt Pink

£16.65 (ex. VAT)
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Product information

Cobalt Pink

Colour Number:  14

Pigment Details: Triscobalt Bis(orthophosphate) Octahydrate / Colour Index Pigment Violet 14 (C.I. PV14)

Cobalt Pink Professional Watercolour is prepared using the inorganic metallic phosphate pigment, triscobalt (II) bis(orthophosphate) octahydrate.  The pigment has been selected for its purity, light fastness and pale mauve hue, making it ideal for use in A J Ludlow’s Professional watercolour range.

The Cobalt Pink pigment available to the Victorian artist was based on cobalt magnesium oxide and, like Cobalt Red (also available at the time), was regarded as inferior to the red pigments derived from madder (and more expensive).  These cobalt pigments were considered chalky and have poor hues and so soon fell out of favour (from “Pigment Compendium”, page 121-122). 

Cobalt phosphate, although chemically stable and light fast, its relatively high cost and low tinting strength has tended to restrict its popularity as an artists’ pigment. 

Eastaugh N, Chaplin T, Siddall R, Walsh V, “Pigment Compendium: A Dictionary and Optical Microscopy of Historic Pigments”, Routledge, Abingdon 2013

Technical specifications

Size 15ml
Brand A J Ludlow


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