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Rublev Colours Egyptian Blue 50g

SKU: NAP-417-1505
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US$ 101.25 
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Details Egyptian blue is a copper calcium silicate that was the first synthetic pigment and the most extensively used from the early dynasties in Egypt until the end of the Roman period in Europe.

Pigment Names
English: Egyptian blue
French: bleu Egyptien
German: Ägyptisch Blau
Italian: blu egiziano
Russian: Египетская синь
Spanish: azul egipcio
English: blue frit, copper frit, Alexandrian blue, Pompeian blue, Pozzuoli blue, Vestorian blue
French: bleu fritte, bleu d'Alexandrie, bleu de Pompeí, bleu de Pouzzoles
German: Frittenblau
Greek: kyanos
Italian: azzuro egiziano
Latin: caeruleum

Origin and History
The invention of the process of manufacturing Egyptian blue during the first dynasties of ancient Egypt, beginning about 3100 B.C.E., was a consequence of other technical developments. It has been suggested that a blue frit was developed for use as a glaze and later as a powdered pigment.

The pigment Egyptian blue was always a manufactured product. The pigment is made by combining quartz, chalk (calcium carbonate), malachite (copper carbonate) and soda ash (sodium carbonate) and heated from 900° to 1000° C.

Permanence and Compatibility
Egyptian blue is completely stable in all vehicles. It is completely light fast. Egyptian blue was mixed with different pigments and used with lime on frescoes.

Oil Absorption and Grinding
Egyptian blue absorbs a small amount of oil (22 g oil per 100 g of pigment).

Egyptian blue contains cooper, which is rated as toxic from prolonged exposure if inhaled or ingested. Care should be used in handling the dry powder pigment to avoid inhaling the dust.

Pigment: Egyptian Blue

Pigment Information
Color: Blue
Colour Index: Pigment Blue 31 (77437)
Chemical Name: Copper Calcium Silicate
Chemical Formula: CaCuSi4O10
ASTM Lightfastness Rating
Acrylic: Not Tested
Oil: Not Tested
Watercolor: Not Tested
Specific Gravity:
Refractive Index: a=1.636, c=1.591
Oil Absorption: 22 g oil/100 g pigment

Shipping specs
0.11 Lbs
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This product is shipped from our warehouse in Willits, CA , US
Our guarantee
This product is brand new and includes the manufacturer's warranty, so you can buy with confidence.
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