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High Performance Pigments with NITRALZ®

Blau-gelber Farbklecks

In the production of various lacquers and emulsion paints or in the colouring of plastics, pigments or colourants must be highly resistant to light, weather, solvents and chemicals. To meet these requirements, our NITRALZ® products are used, among other things, as intermediates for a wide range of high performance pigments (HPP).

Products and areas of application

Nitriles for Diketopyrrolopyrrol pigments (DPP)

We offer you a broad product portfolio for the production of your Diketopyrrolopyrrol-Pigments (DPP Pigments), which are suitable for formulations with the highest quality requirements.

NITRALZ®CAS Nr.used for the production ofSpecification
Benzonitrile100-47-0Pigment Red 255 (PR 255)≥ 99,6%
4-Brombenzonitrile623-00-7orange-red≥ 99,0%
3-Chlorbenzonitrile766-84-7orange-red≥ 99,0%
4-Chlorbenzonitrile623-03-0Pigment Red 254 (PR 254)≥ 99,5%
o-Phthalodinitrile91-15-6Pigment Yellow 139 (PY 139)
Pigment Yellow 185 (PY 185)
≥ 99,5%
o-Phthalodinitrile91-15-6Phthalocyanine Blue 15 (PB 15)
Phthalocyanine Green 36 (PG 36)
Phthalocyanine Green 7 (PG 7)
> 99,5%
4-tert.-Butylbenzonitrile4210-32-6Pigment Orange 73 (PO 73)≥ 98,0%
4-Tolunitrile104-85-8Pigment Red 272 (PR 272)≥ 98,5%
Advantages with OPN

Nitriles in the production of phthalocyanines

Our o-Phthalodinitrile (OPN) can also be used for the production of Phthalocyanines. It has a very high purity and is characterized by low impurities and metal content. Using OPN instead of the route using phthalic acid anhydride brings the following advantages in producing phthalocyanine pigments:

  • More brighter and brilliant pigments

  • Only one reaction step is required
  • Direct synthesis with very little formation of by-products and waste water. The structure of the Phthalocyanine is already preformed in the o-Phthalodinitrile
  • Economic advantages: Via the PSA route there is only a yield of around 80% and so many by-products have to be disposed of

How DPP pigments are created

Some of the aromatic nitriles are used to manufacture organic pigments, diketopyrrolopyrroles (DPPs). They are obtained through the condensation of two molecules of nitrile with dimethyl succinate. Depending on the substitution pattern they create yellow, orange, orange and red color pigments. The pigments are used in automotive paints, to dye plastics, in emulsion paints and others. The best-known is certainly PR 254, Irgazine® Red. This pigment provided for the first time a relatively non-toxic and light-fast alternative to Zinnober Red and to the later Cadmium Red. Its inclusion in an automotive paint for a very special car has given this red pigment its nickname – Ferrari Red

 Chemische Verbindung Diketopyrrolopyrrol-Pigmente

Discover the colourful diversity.

Blau-gelber Farbklecks
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