Copper phthalocyanine blue
Phthalocyanine blue is an organic substance with the chemical formula C32H16CuN8. It is a bright green blue rod-shaped crystal. It is flammable and insoluble in water, alcohol and hydrocarbons. It is soluble in concentrated sulfuric acid and presents an olive-colored solution. After dilution, a blue suspension precipitates.
Phthalonitrile is heated in sodium pentoxide medium at 125°C to generate sodium phthalocyanine, which is dried and then treated with methanol at 10°C to transform into metal-free phthalocyanine. It is used for coloring automobile paints and art pigments, and is also used as some high-end metal-free colorants.
| Nombre | Phthalocyanine blue |
| nombre inglés | Copper phthalocyanine blue B |
| Fórmula química | C32H16CuN8 |
| Melting point | 600 ℃ |
| Densidad | 1.31 g/cm³ |
| Peso molecular | 576.069 |
| Área de superficie | 36～52m2/g |
| Oil absorption | ≤45±5 ml/l00g |
| Resistencia al calor | 200℃ |
| Color light | Red light blue |
Phthalocyanine blue physical properties
Appearance: bright blue crystal. There are two crystal forms, α and β. Type β is more stable.
Solubilidad: Insoluble en agua y disolventes orgánicos.
This product is bright blue powder. Bright color and strong tinting power. Insoluble in water and organic solvents. It has excellent properties and does not produce crystal growth in non-polar solvents, so it can be used in coatings.
La norma nacional de China para pigmentos, GB3182-82, se volvió a presentar para su aprobación en 1995 como GB/T3182-1995. También utiliza la clasificación de colores. Cada color de pigmento tiene un símbolo, como blanco para BA, rojo para HO y amarillo para HU. El código y número de serie de la estructura química y el modelo del pigmento, como blanco de titanio rutilo BA-01-03, amarillo de cromo medio HU-02-02, óxido de hierro HO-01-01, blanco de bario y zinc BA- 11-01, rojo de anilina HO y 2-01, azul de ftalocianina BGS LA-61-02, etc.
Phthalocyanine blue Chemical Properties
Combustible, the fire emits pungent and irritating smoke containing copper and nitrogen oxides.
Generally not hazardous to water, do not discharge material into the surrounding environment without government permission.
Applications of Phthalocyanine blue
- Mainly used for coloring inks, coatings, plastics, rubber and cultural and educational supplies.
- Used in various solvent-based paints, plastic inks, gravure printing inks, and quick printing inks.
- Stable β-type green light blue, good dispersion and high hiding power, used in alkyd resin paint.
- Used for coloring ink, paint, plastic, rubber, paint paste and synthetic fiber pulp.
- Unstable α-type red light blue, strong tinting power, can be used in latex and water-based coatings.
- Used to make peacock blue ink, used for coloring alkyd paint, etc., and also used for coloring plastic products, cultural and educational supplies, etc.
- Used for coloring paint, spray paint, ink, plastic, and rubber.
- Mainly used for ink, iron printing ink, paint, painting watercolor, oil paint and paint printing, as well as the coloring of rubber products and plastic products.
- It is the main variety of blue pigments and is mainly used as colorant in adhesives. The particle size for practical application is generally 0.01~0.1μm, and a particle refinement process must be carried out. The purpose of pigmentation processing is to change the crystal form and reduce the crystal particles. Methods include acid treatment and salt grinding. Mainly used in the ink industry to manufacture peacock blue ink, which is the main variety of four-color plate printing ink. In the coatings industry, it is used in the manufacture of alkyd enamels, amino baking varnishes, nitrocellulose lacquers and the coloring of clear lacquers. It is also used for coloring plastics, rubber, cultural and educational supplies, linoleum and paint printing, etc.
