Ultramarine
Starwin Ultramarine Violet - Pigment Violet 15
Pigment Violet 15 (CAS 1345-48-8, C.I. 77007) is a high-performance inorganic violet pigment belonging to the ultramarine family (sodium aluminum sulphosilicate). It delivers a clean, bright violet-purple shade with exceptional lightfastness (Grade 8), heat resistance up to 300°C, and non-migratory properties. Ideal for high-end cosmetics, artists' paints, specialty coatings, plastics, and decorative applications where a unique violet hue with outstanding durability is required.
Key Information
技术规格
Product Overview
Pigment Violet 15, commonly known as Ultramarine Violet, is a high-performance inorganic violet pigment belonging to the ultramarine family — the same sodium aluminum sulphosilicate (sodalite) chemistry as Ultramarine Blue (PB29). Through controlled variation of the calcination process and sulfur content, the chromophore is shifted to produce a distinctive violet-purple shade that retains all the durability advantages of the ultramarine family.
Starwin Ultramarine Violet is the commercial-grade Pigment Violet 15 supplied by Hangzhou Starwin Tech Co., Ltd. With more than 15 years of experience in inorganic pigment production, Starwin delivers consistent color strength, stable violet hue, and reliable batch-to-batch reproducibility for cosmetics, artists' paints, specialty coatings, plastics, and decorative applications.
Key Identification
| Property | 价值 |
|---|---|
| Product Name (EN) | Ultramarine Violet |
| Commercial Name | Starwin Ultramarine Violet |
| C.I. Name | Pigment Violet 15 |
| 客户编号 | 77007 |
| CAS 编号 | 1345-48-8 |
| Molecular Formula | Na₆Al₄Si₆S₄O₂₀ (modified) |
| Chemical Class | Inorganic / Sodium Aluminum Sulphosilicate (Ultramarine family) |
| 外观 | Violet-purple powder |
| Color Shade | Clean violet-purple |
| Crystal System | Cubic (sodalite structure) |
Technical Specifications
The following data represents typical performance properties of Starwin Ultramarine Violet. Actual values may vary by grade — please refer to the Certificate of Analysis (COA) for each shipment.
| Parameter | 规格 |
|---|---|
| 纯净 | ≥ 93% |
| Moisture Content | ≤ 0.5% |
| 吸油 | 30 – 45 g/100g |
| Specific Gravity | 2.30 – 2.40 g/cm³ |
| 堆积密度 | 0.50 – 0.70 g/cm³ |
| Mean Particle Size (d50) | 1.5 – 3.5 μm |
| Residue (45 μm) | ≤ 0.1% |
| Free Sulfur | ≤ 0.05% |
| Water-Soluble Matter | ≤ 1.0% |
| Light Fastness (Blue Wool Scale) | 8 (excellent) |
| Weather Fastness | 7 – 8 (excellent) |
| Heat Resistance | ≥ 280°C (5 min) / > 300°C (short-term) |
| Acid Resistance | Poor (Grade 1) — not suitable for acidic systems |
| 耐碱性 | Excellent (Grade 4) |
| Migration Resistance | 5 (non-migratory) |
| Packaging | 25 kg/bag with inner PE liner |
| Storage | 存放于阴凉、干燥、通风处，避免阳光直射 |
| HS Code | 32061100 |
How to Interpret These Specifications
- Color Shade (Clean Violet-Purple): Ultramarine Violet produces a distinctive violet-purple hue that is warm and saturated. Unlike organic violet pigments, it has a unique depth and character prized in artists' paints and high-end cosmetics.
- Light Fastness (Grade 8): Among the highest lightfastness ratings available. The pigment does not fade under UV exposure, making it suitable for permanent applications in art and exterior coatings.
- Heat Resistance (≥ 280°C): Excellent thermal stability suitable for most plastic processing temperatures and demanding coating applications.
- Acid Resistance (Poor): Like all ultramarine pigments, Ultramarine Violet decomposes in acidic environments. Avoid use in systems with pH below 5.
- Alkali Resistance (Excellent): Stable in alkaline environments including cement, detergents, and soap systems.
- Non-Migratory: Does not bleed or migrate, ensuring permanent color stability in plastics, rubber, and coatings.
Key Applications
1. Cosmetics & Personal Care
- Eye Shadows: The clean violet shade and excellent skin safety profile make Ultramarine Violet a premium choice for color cosmetics.
- Blushes & Face Powders: Used to create sophisticated violet-toned cosmetic formulations.
- Lip Products: Approved for use in lip cosmetics under EU and US regulations when purity requirements are met.
2. Artists' Paints
- Oil Paints: A classic artist's pigment with a unique violet hue that cannot be replicated by mixing. Permanence rating ASTM I.
- Watercolors & Gouache: Disperses well in aqueous media for fine art applications.
- Acrylic Paints: Stable in acrylic emulsions for professional-grade artist colors.
3. Specialty Coatings
- Decorative Coatings: Used in premium interior and exterior coatings where a unique violet shade is specified.
- Effect Coatings: Compatible with pearlescent and metallic pigments for automotive and decorative effects.
4. Plastics
Suitable for coloring PE, PP, PVC, PS, ABS, and engineering plastics. Non-migratory properties ensure permanent color. Heat resistance up to 280°C covers most processing conditions.
5. Detergents & Soaps
Used as a violet tinting agent in specialty detergents and decorative soaps. Excellent alkali resistance ensures stability in high-pH formulations.
Ultramarine Violet vs. Organic Violet Pigments
| Property | Ultramarine Violet (PV15) | Organic Violet (e.g., PV23, PV19) |
|---|---|---|
| Chemical Class | Inorganic (sulphosilicate) | Organic (dioxazine / quinacridone) |
| Lightfastness | 8 (excellent) | 7 – 8 |
| Heat Resistance | ≥ 280°C | 200 – 300°C |
| Acid Resistance | Poor | Good to Excellent |
| Shade Character | Unique warm violet depth | Clean, bright violet |
| Cosmetic Safety | Excellent (FDA/EU approved) | Varies by pigment |
| Migration | Non-migratory | May migrate in some media |
Packaging & Storage
- 包装： 25 kg/bag with inner PE liner. 25 kg fiber drum available. Bulk super sacks available upon request.
- Storage: Store in a cool, dry, well-ventilated area away from direct sunlight. Avoid moisture absorption — keep bags sealed when not in use. Shelf life: indefinite under proper storage conditions.
- 交通： Not classified as dangerous goods under UN transportation regulations.
Frequently Asked Questions (FAQ)
What is the difference between Ultramarine Violet and Ultramarine Blue?
Both belong to the ultramarine family (sodium aluminum sulphosilicate) and share the same cubic sodalite crystal structure. The difference lies in the chromophore: Ultramarine Violet has a modified sulfur content and calcination profile that shifts the absorption spectrum toward the violet-purple region. Both share the same excellent lightfastness (Grade 8), heat resistance, and non-migratory properties, but Ultramarine Violet has poor acid resistance like all ultramarine pigments.
Is Ultramarine Violet safe for cosmetic use?
Yes. Pigment Violet 15 is approved for cosmetic use in the EU and US, subject to purity requirements. Starwin offers high-purity grades with controlled heavy metals and low free sulfur specifically designed for cosmetic applications.
Can Ultramarine Violet be used in exterior applications?
Yes. With lightfastness Grade 8 and weather fastness Grade 7–8, Ultramarine Violet is excellent for exterior applications including artists' murals, architectural coatings, and decorative concrete. Avoid acidic environments.
Do you provide samples, COA, and SDS?
是的，杭州星赢科技有限公司提供样品供评估，每批货物均附带COA和SDS。
Why Choose Hangzhou Starwin Tech Co., Ltd. as Your Ultramarine Violet Supplier?
- 15+ Years Experience: Deep expertise in ultramarine pigment production with consistent quality control.
- High-Purity Grades: Cosmetic-grade and low-sulfur grades available for sensitive applications.
- 技术支持： Application lab offers free color matching, grade selection guidance, and formulation advice.
- 可靠供应： Stable production capacity serving customers across Asia, Europe, and the Americas.
- Competitive Pricing: Direct from manufacturer with flexible MOQ options.
Contact Us
杭州星威科技有限公司
For technical data sheets (TDS), safety data sheets (SDS), samples, or pricing inquiries regarding Starwin Ultramarine Violet (Pigment Violet 15, CAS 1345-48-8)，请联系我们的团队。
We welcome both small-scale trial orders and long-term supply partnerships.
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