56 Phthalocyanine green pigments
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Robert Christie
Abstract
The dominant organic green pigments are polyhalogenated copper phthalocyanines (CuPcs). These pigments exhibit similar excellent coloristic and technical performance to CuPc blue pigments and are produced worldwide in large quantities. The green pigments are halogenated CuPcs. There are two pigments with CI designations. CI Pigment Green 7 is a bluish green product, in which the 16 ring hydrogen atoms of the CuPc molecule are replaced virtually completely by chlorine. Products designated as CI Pigment Green 36 incorporate a range of bromo- and bromochlorocopper phthalocyanines and are yellowish-green pigments. CuPc green pigments are manufactured by direct exhaustive halogenation of crude CuPc blue with chlorine or bromine or an appropriate mixture of the two halogens, depending on the composition of the product required. The synthesis is carried out at elevated temperatures in a suitable solvent, commonly a molten AlCl3/NaCl eutectic mixture.
Abstract
The dominant organic green pigments are polyhalogenated copper phthalocyanines (CuPcs). These pigments exhibit similar excellent coloristic and technical performance to CuPc blue pigments and are produced worldwide in large quantities. The green pigments are halogenated CuPcs. There are two pigments with CI designations. CI Pigment Green 7 is a bluish green product, in which the 16 ring hydrogen atoms of the CuPc molecule are replaced virtually completely by chlorine. Products designated as CI Pigment Green 36 incorporate a range of bromo- and bromochlorocopper phthalocyanines and are yellowish-green pigments. CuPc green pigments are manufactured by direct exhaustive halogenation of crude CuPc blue with chlorine or bromine or an appropriate mixture of the two halogens, depending on the composition of the product required. The synthesis is carried out at elevated temperatures in a suitable solvent, commonly a molten AlCl3/NaCl eutectic mixture.
Chapters in this book
- Frontmatter I
- Preface V
- Contents VII
- List of contributors XV
- 45 Mixed metal oxide pigments 849
- 46 Monoazo (Monohydrazone) pigments based on acetoacetanilides 859
- 47 Monoazo (Monohydrazone) pigments based on benzimidazolones 871
- 48 Monoazo (Monohydrazone) pigments based on 2-naphthol and derivatives 885
- 49 Naphthopyran dyes 909
- 50 Organic pigments: general principles 925
- 51 Oxonitride pigments 955
- 52 Oxonol dyes 959
- 53 Perylene and perinone pigments 967
- 54 Photochromic dyes 979
- 55 Phthalocyanine blue pigments 1015
- 56 Phthalocyanine green pigments 1029
- 57 Phthalocyanine pigments: general principles 1035
- 58 Pigments: general aspects 1041
- 59 Polymethine dyes 1057
- 60 Quinacridone pigments 1071
- 61 Special effect pigments 1081
- 62 Spirooxazine dyes 1105
- 63 Spiropyran dyes 1125
- 64 Streptocyanine dyes 1153
- 65 Streptomerocyanine dyes 1165
- 66 Titanium dioxide pigments 1177
- 67 Transparent pigments 1195
- 68 Ultramarine pigments 1203
- 69 White pigments 1211
- 70 Zinc oxide pigments 1213
- 71 Zinc sulfide pigments 1219
- Index 1225
Chapters in this book
- Frontmatter I
- Preface V
- Contents VII
- List of contributors XV
- 45 Mixed metal oxide pigments 849
- 46 Monoazo (Monohydrazone) pigments based on acetoacetanilides 859
- 47 Monoazo (Monohydrazone) pigments based on benzimidazolones 871
- 48 Monoazo (Monohydrazone) pigments based on 2-naphthol and derivatives 885
- 49 Naphthopyran dyes 909
- 50 Organic pigments: general principles 925
- 51 Oxonitride pigments 955
- 52 Oxonol dyes 959
- 53 Perylene and perinone pigments 967
- 54 Photochromic dyes 979
- 55 Phthalocyanine blue pigments 1015
- 56 Phthalocyanine green pigments 1029
- 57 Phthalocyanine pigments: general principles 1035
- 58 Pigments: general aspects 1041
- 59 Polymethine dyes 1057
- 60 Quinacridone pigments 1071
- 61 Special effect pigments 1081
- 62 Spirooxazine dyes 1105
- 63 Spiropyran dyes 1125
- 64 Streptocyanine dyes 1153
- 65 Streptomerocyanine dyes 1165
- 66 Titanium dioxide pigments 1177
- 67 Transparent pigments 1195
- 68 Ultramarine pigments 1203
- 69 White pigments 1211
- 70 Zinc oxide pigments 1213
- 71 Zinc sulfide pigments 1219
- Index 1225
