Range :Old Holland Classic Watercolours
Colourname :Prussian blue extra
Colournumber :34
Serie :A
Pigment classification :Ammonium ferro(3+)hexacyano-C ferrate(4+)
Colour index :PB27
Colour index number :77510
Lightfastness : Lightfast pigment according to ASTM
category 1 and 2
Opacity/transparency :Transparent