Azul egipcio
Esquema
Jerarquía
<materiales por función> > colorante > pigmento > <pigmentos por color> > pigmento azul > pigmento azul inorgánico artificial
Descripción
A synthetic inorganic colorfast pigment having coarse, irregular particles and ranging in color from a powdery blue to a royal blue. It is composed of a double silicate of calcium and copper, prepared by heating a mixture of silica, copper salts, and calcite in a sodium carbonate flux, forming a stable blue frit. Egyptian blue is stable in all types of media and is unaffected by acids or alkali. It was used by the ancient Egyptians over 5000 years ago as a pottery glaze and watercolor pigment in wall paintings. Similar materials, later manufactured in Italy and called Pompeian blue and Pozzuoli blue, have similar chemical compositions and optical properties.
URI original del concepto
Otros términos
- Egyptian blue [en]
- Egyptisch blauw [nl]
- blue, Egyptian [en]
- Italian blue [en]
- Alexandria blue [en]
- Venetian blue [en]
- Vestorian blue [en]
- Alexandrian blue [en]
- copper frit [en]
- Ägyptischblau [en]
- Ägyptisch Blau [en]
- bleu d'alexandrie [en]
- bleu d'Egypte [en]
- bleu Egyptian [en]
- bleu egiziano [en]
- bleu de Pouzzoles [en]
- bleu fritté [en]
- blue frit [en]
- Frittenblau [en]