tramarine Blue has a rich history, tracing its origins back to ancient civilizations where it was highly esteemed for its rarity and beauty. The name “ultramarine” itself signifies its origin from “beyond the sea,” symbolizing the arduous journeys undertaken to obtain lapis lazuli from distant lands. Initially, Ultramarine Blue was a luxury reserved for the elite due to its exorbitant cost. However, with the advent of synthetic alternatives in the 19th century, it gradually became more accessible to a wider audience.
In China, natural ultramarine pigment held profound cultural significance in Buddhist art, where it became revered as "Buddha Blue" (Fo Qing). This sacred hue graced the surfaces of Buddha statues, temple murals, and intricately detailed thangka scroll paintings, symbolizing both spiritual purity and celestial realms. The mineral's enduring vibrancy—resisting fading across centuries—mirrored Buddhism's timeless teachings, while its rarity paralleled the devotion required for spiritual enlightenment. From the Mogao Caves' ethereal heavens to the gilt-edged mandalas of Tibetan monasteries, ultramarine transcended mere pigment, becoming a bridge between earthly craftsmanship and divine aspiration.
Ultramarine pigments feature a 3D aluminosilicate lattice with sodium ions and polysulfide radicals (S??/S??) encapsulated within cage-like structures. This framework ensures:
Resistant to heat (up to 350°C for blue variants) and UV degradation.
Dominant S?? radicals absorb green-yellow wavelengths, producing a signature red-shifted blue (440--450 nm reflectance peak). Adjusting sulfur content or substituting sodium with potassium enhances color versatility (e.g., violet/pink derivatives).
Fine-tuning particle size (1--5 μm) controls transparency and undertones---smaller particles yield brighter, greener hues.
Inert to solvents, alkalis, and oxidation; ideal for plastics, coatings, and cosmetics.
Acid-sensitive by default but acid-resistant grades (SiO?-coated) eliminate H?S emissions in acidic environments.
Grade 7--8 on the Blue Wool Scale---retains vibrancy for centuries, perfect for outdoor applications.
Withstands 350°C (blue), 280°C (violet), and 220°C (pink)---critical for high-temperature polymer processing.
Refractive index (1.50) matches most resins, enabling transparency in thin films. Add TiO? (<5%) for opacity without compromising color intensity.
Hydrophilic nature ensures effortless dispersion in water-based systems; lipophilic treatments optimize compatibility with plastics/oil-based media.
Non-migrating, FDA/EU-approved, and heat-stable for PP, PE, PVC (acid-resistant grades). Enhances whiteness correction in packaging.
Transparent blues for metallic finishes or opaque effects with TiO?. Superior weatherability in automotive/architectural paints.
Safe for eyeshadows, nail polishes, and skincare---non-toxic, non-staining, with vibrant color payoff.
500+ years of archival stability in fine art; used in toys, detergents (optical brighteners), and food-safe inks.
Modern production integrates closed-loop sulfur recovery, reducing emissions by 90%. R&D explores eco-friendly syntheses (e.g., 4A zeolite routes) to align with global ESG standards.
Timeless Aesthetics: From Renaissance masterpieces to modern packaging.
Technical Superiority: Combines color brilliance with industrial durability.
Regulatory Confidence: Globally approved for food contact, cosmetics, and toys.
Explore our acid-resistant, UV-stable, and custom-grade formulations---engineered to elevate your products while honoring a 2,000-year legacy.
| Weight | 2 lbs |
| Dimensions | 12 × 16 × 19 in |
| Product | Purchase this product on rag-bone.com |
| Color | Gray, Black |
| Size | S, M, L, XL |
| Model | Model |
| Shipping | Standard shipping: $5,95L |
| Care Info | Machine Wash up to 40ºC/86ºF Gentle Cycle |
| Brand | Kazen |
Laboratories used for scientific research take many forms because of the differing requirements of specialists in the various fields of science and
engineering. A physics laboratory might contain a particle accelerator or vacuum chamber, while a metallurgy laboratory could have apparatus for
casting or refining metals or for testing their strength.
Laboratories used for scientific research take many forms because of the differing requirements of specialists in the various fields of science and
engineering. A physics laboratory might contain a particle accelerator or vacuum chamber, while a metallurgy laboratory could have apparatus for
casting or refining metals or for testing their strength.
Laboratories used for scientific research take many forms because of the differing requirements of specialists in the various fields of science and
engineering. A physics laboratory might contain a particle accelerator or vacuum chamber, while a metallurgy laboratory could have apparatus for
casting or refining metals or for testing their strength.
Laboratories used for scientific research take many forms because of the differing requirements of specialists in the various fields of science and
engineering. A physics laboratory might contain a particle accelerator or vacuum chamber, while a metallurgy laboratory could have apparatus for
casting or refining metals or for testing their strength.
Laboratories used for scientific research take many forms because of the differing requirements of specialists in the various fields of science and
engineering. A physics laboratory might contain a particle accelerator or vacuum chamber, while a metallurgy laboratory could have apparatus for
casting or refining metals or for testing their strength.
Laboratories used for scientific research take many forms because of the differing requirements of specialists in the various fields of science and
engineering. A physics laboratory might contain a particle accelerator or vacuum chamber, while a metallurgy laboratory could have apparatus for
casting or refining metals or for testing their strength.