Here, pigments are classified based on their chemical composition as follows:
• Inorganic pigments
— Oxides: titanium dioxide, iron oxide red, nickel titanate yellow
— Sulfides: zinc sulfide, cadmium sulfide
— Chromates: chrome yellow, chrome orange, zinc chromate
— Molybdates: molybdate orange, zinc molybdate
— Phosphates: zinc phosphates, aluminum phosphate
— Elements
— Metallic: aluminum, copper, zinc
— Non-metallic: carbon black
— Coordination complex: iron blue
— Others: ultramarine blue, bismuth vanadate, zinc metaborate
• Organic pigments
— Azo pigments
— Monoazo pigments: toluidine red, arylamide yellow, naph — thol red
— Diazo pigments: diarylide yellows, pyrazolone orange
— Salt-type azo pigments (lakes): PR 53, PR 57
— Azo condensation pigments: PY 93, PR 144
— Azo complex pigments: PG 10, PO 59
— Isoindolinone and isoindoline pigments: PY 109, PO 61
• Polycyclic pigments
— Phthalocyanine pigments: phthalocyanine blue and green
— Quinacridone pigments: PR 122, PV 19
— Anthraquinone pigments: PY 108, PO 51, PB 60, PR 177
— Perylene pigments: PR 123, PR 178, PV 29
— Perinone pigments: PO 43, PR 194
— Diketopyrrolopyrrole pigments: PR 254, PO 73
— Thioindigo pigments: PR 88, PR 181
— Dioxazine pigments: PV 23
— Quinopthalone pigments: PY 138
— Triarylcarbonium pigments: PB 61, PB 19