Egyptian Blue Pigment

SKU: NAP-GROUP-938356
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Color
Blue
Processing time
Usually ships the next business day.
Pigment type
Inorganic, Historical, Synthetic
Description

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
Common Names: English: Egyptian blue
French: bleu Egyptien
German: Ägyptisch Blau
Italian: blu egiziano
Russian: Египетская синь
Spanish: azul egipcio
Historical Names: 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
Nomenclature:
Common Name Primary Mineral Source
Egyptian Blue Cuprorivaite England
Pigment Information
Color: Blue
Pigment Classification: Synthetic Inorganic
Colour Index: Pigment Blue 31 (77437)
Chemical Name: Copper Calcium Silicate
Chemical Formula: CaCuSi4O10 or CaOCuO(SiO2)4)
CAS No.: 10279-60-4
Series No.: 7
ASTM Lightfastness
Acrylic: Not Listed
Oil: Not Listed
Watercolor: Not Listed
Physical Properties
Particle Size (mean): 5 microns
Density:
Hardness:
Refractive Index: α=1.636, β=1.591
Oil Absorption: 22 grams oil / 100 grams pigment
Health and Safety There are no acute or known chronic health hazards associated with the anticipated use of this product (most chemicals are not fully tested for chronic toxicity). Always protect yourself against potentially unknown chronic hazards of this and other chemical products by keeping them out of your body. Do this by avoiding ingestion, excessive skin contact, and inhalation of spraying mists, sanding dusts and vapors from heating. Conforms to ASTM D-4236.

For a detailed explanation of the terms in the table above, please visit .

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.

Source

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).

Toxicity

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.

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This product is shipped from our supplier's warehouse in Willits, CA, United States
Our guarantee
This product is brand new and includes the manufacturer's warranty, so you can buy with confidence.
A 25% handling charge is levied against all authorized returns except those due to our error. Unauthorized returns are subject to a 40% handling charge. Damages & defects must be reported to us within 14 days.
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