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New class of Metal Pyridino‐porphyrazine pigments

M.A. Abd El‐Ghaffar (Laboratory of Polymers and Pigments, National Research Center, Dokki, Cairo, Egypt)
I.A. Sabbah (Laboratory of Polymers and Pigments, National Research Center, Dokki, Cairo, Egypt Faculty of Science Al‐Azhar‐University, Nasr City Cairo, Egypt)
M. Moustafa (Laboratory of Polymers and Pigments, National Research Center, Dokki, Cairo, Egypt Faculty of Science Al‐Azhar‐University, Nasr City Cairo, Egypt)
A.A. Salman (Laboratory of Polymers and Pigments, National Research Center, Dokki, Cairo, Egypt Faculty of Science (Girls) ‐Al‐Azhar University, Nasr City, Cairo, Egypt)

Pigment & Resin Technology

ISSN: 0369-9420

Article publication date: 1 May 1988

28

Abstract

Cobalt, Nickel and Copper hexaazabiphthalocyanine were prepared by the reaction of pyridine 2,3‐dicarboxylic acid anhydride, pyromillitic acid dianhydride, with urea and metal salt in presence of ammonium molybdate catalyst. The reaction is carried out in an inert solvent [nitrobenzene]. The structure of the prepared compound was confirmed by microanalytical and pectrophotometric methods. Evaluation of the highly coloured products according to international standard methods showed their suitability as excellent pigments for coating applications.

Citation

Abd El‐Ghaffar, M.A., Sabbah, I.A., Moustafa, M. and Salman, A.A. (1988), "New class of Metal Pyridino‐porphyrazine pigments", Pigment & Resin Technology, Vol. 17 No. 5, pp. 4-6. https://doi.org/10.1108/eb042476

Publisher

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MCB UP Ltd

Copyright © 1988, MCB UP Limited

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