ftalocyaninblått

Ftalocyaninblått, also known as Phthalocyanine Blue, is a synthetic organic pigment characterized by its intense blue hue and excellent lightfastness. It belongs to the phthalocyanine class of compounds, which are macrocyclic organic molecules containing a central metal ion, typically copper. The most common form is Copper Phthalocyanine (CuPc).

The pigment's structure consists of four isoindole units linked by nitrogen atoms around a central copper atom. This planar, highly conjugated system is responsible for its vibrant color and stability. Ftalocyaninblått is produced through a chemical process involving phthalonitrile or its derivatives and a copper salt, often in the presence of a catalyst.

Due to its chemical inertness and resistance to heat, solvents, and acids, Ftalocyaninblått is widely used in various applications. It is a staple in the paint and coatings industry, providing durable and bright blue colors for automotive finishes, industrial coatings, and artist paints. It is also employed in printing inks, plastics coloration, and textiles. Its high tinting strength means a small amount can produce a significant color effect. Different crystalline forms and modifications of Ftalocyaninblått exist, leading to variations in shade and properties, such as alpha-form (reddish-blue) and beta-form (greenish-blue).