Description

Ultramarines are a class of complex, synthetic inorganic pigments renowned for their vibrant and stable blue to violet hues. Their exceptional value lies in their outstanding lightfastness, heat stability, and chemical inertness, making them superior to many organic colorants. This product is essential for industries requiring durable and non-toxic coloration, including plastics, paints, coatings, and construction materials. Ultramarines CAS NO 12703-66-1 offer a reliable solution for achieving consistent, fade-resistant color in demanding applications.

Application

• Plastics and Masterbatch Coloring: Imparts stable blue, violet, and pink shades to polyolefins, PVC, and engineering plastics for consumer goods, automotive parts, and packaging.
• Paints, Coatings, and Inks: Used in industrial, architectural, and automotive paints, as well as printing inks, for excellent weathering resistance and opacity.
• Construction Materials: A key pigment for coloring concrete, mortar, roofing granules, and artificial stone, providing long-lasting color that withstands UV exposure and alkaline conditions.
• Cosmetics and Personal Care: Employed as a color additive in eye shadows, soaps, and other cosmetic products where a non-toxic, inorganic pigment is required.
• Paper and Specialty Coatings: Used in the surface coloring of high-quality paper and in functional coatings where chemical stability is paramount.
• Artists' Colors: A premium pigment for high-grade artists' paints (watercolor, oil, acrylic) due to its purity and exceptional permanence.

Basic Information

Product Name	Ultramarines
CAS No.	12703-66-1
Molecular Formula	Na6-10Al6Si6O24S2-4
Molecular Weight	~ 950 g/mol (Approx., varies with composition)
Synonyms	Ultramarine Blue; Ultramarine Pigment; C.I. Pigment Blue 29; C.I. 77007; Lapis Lazuli (synthetic); French Ultramarine; Ultramarine Violet; Ultramarine Pink; Sodium Aluminum Sulfosilicate
EINECS	235-792-3

Quality Control

Our Ultramarines are manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Quality is verified through comprehensive testing of key parameters including color strength, hue, particle size distribution, and chemical composition. We provide full traceability and Certificates of Analysis (COA) for every shipment. Our production adheres to relevant global standards for color pigments, and specific grades can be supplied to meet requirements for food contact, cosmetics, or toys as per applicable regulations (e.g., FDA, EU).

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong acids. Although stable, prolonged exposure to high humidity should be avoided to prevent caking.

Specification

Item	Specification
Appearance	Fine Blue, Violet, or Pink Powder
Color Strength (vs. Standard)	95 - 105%
Hue (L*, a*, b*)	Per agreed standard
Particle Size (D50)	0.5 - 5.0 µm (Grade dependent)
Oil Absorption	25 - 40 g/100g
Water Soluble Matter	≤ 1.0 %
pH (10% Slurry)	6.0 - 10.5
Volatile Matter (105°C)	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm
Identification (XRD/IR)	Conforms to Ultramarine structure

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