Winsor and Newton Cotman Watercolour Paint 21ml - Cadmium Orange Hue

Please note, Cadmium âHueâ means this is a replica of Cadmium and does not contain any actual Cadmium. Cadmium Hue colours use alternative pigments that do not contain Cadmium metal compounds. Colour number/code: 90 Series number: 1 Chemical description: Diarylide yellow, Perinone orange Colour index name: PY83, PO43 Colour index number: 21108, 71105 Permanence rating: A ASTM lightfastness rating: - Transparency/Opacity: T Granulating/Staining: - The range of 40 colours are chosen according to mass tone (colour from tube), undertone (bias of colour when in a thin film), colour strength, relative opacity and the character of the pigment itself. The resultant colour spectrum ensures the largest number of colours can be mixed. The Cotman Water Colour range has a more uniform consistency than the Artists' Water Colour range and this benefits beginners as there is less to learn about each individual pigment. The Cotman Water Colour range also relates to the Winsor & Newton Artists' Water Co