Description

Egyptian Blue is a synthetic inorganic pigment, chemically known as calcium copper silicate, renowned for its intense and stable blue color. This historically significant pigment offers exceptional lightfastness and chemical stability, making it a superior choice for applications requiring durable coloration. It is primarily utilized in the art conservation, specialty coatings, plastics, and advanced material science sectors.

Application

• Art Conservation & Restoration: Used for in-painting and retouching of historical artworks, murals, and artifacts due to its authentic color match and stability.
• Specialty Paints & Coatings: Imparts unique, stable blue hues in high-performance industrial and artistic paints where UV resistance is critical.
• Plastics and Polymer Masterbatches: Serves as a colorant for engineering plastics and polymers requiring heat stability and weatherability.
• Advanced Material Research: Investigated for use in sensors, luminescent materials, and as a catalyst due to its unique crystalline structure.
• Cultural Heritage Replication: Employed in the creation of historically accurate reproductions of ancient art and decorative objects.
• Security Inks and Tagging: Potential application in anti-counterfeiting measures due to its specific spectroscopic properties.

Basic Information

Product Name	Egyptian Blue
CAS No.	10279-60-4
Molecular Formula	CaCuSi4O10
Molecular Weight	456.06 g/mol
Synonyms	Calcium Copper Silicate; Cuprorivaite; Pompeian Blue; Alexandrian Blue; Vestorian Blue; Egyptian Blue Pigment; C.I. Pigment Blue 31; Calcium Copper Tetrasilicate
EINECS	233-647-8

Quality Control

Our Egyptian Blue is manufactured under controlled conditions to ensure batch-to-batch consistency and high performance. Quality is verified through a series of tests including X-ray Diffraction (XRD) for phase purity, spectroscopic analysis for color characteristics, and particle size distribution. Certificates of Analysis (COA) detailing these parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong acids.

Specification

Item	Specification
Appearance	Fine Blue Powder
Identification (XRD)	Complies (Cuprorivaite Phase)
Purity (Phase Content)	≥ 95%
Particle Size (D50)	1 - 10 µm
Color (CIELab)	Contact for details
Loss on Drying	≤ 2.0 %
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.