Sulfur Green
Premium Sulfur Green Pigment for Industrial and Artistic Applications
Sulfur Green is a high-quality inorganic pigment renowned for its excellent lightfastness and chemical stability. This versatile green pigment finds applications across multiple industries including coatings, plastics, printing inks, and construction materials.
Key Product Specifications
- Chemical Composition: Complex inorganic colored pigment (CICP)
- Color Index: Pigment Green 50
- Particle Size: 0.2-1.0 microns (average 0.5 microns)
- Specific Gravity: 4.8-5.2 g/cm³
- Oil Absorption: 15-25 g/100g
- Heat Resistance: Stable up to 400°C (752°F)
- pH Value: 6.5-8.5 (10% aqueous suspension)
- Moisture Content: ≤1.0%
| Property | Value | Test Method |
|---|---|---|
| Lightfastness | 8 (ISO 105-B02) | Xenon arc testing |
| Weather Resistance | Excellent | QUV accelerated weathering |
| Chemical Resistance | Resistant to acids and alkalis | ASTM D1308 |
| Migration Resistance | Non-migrating | Plastics testing |
| Dispersion | Easy to disperse | Hegman grind gauge |
Sulfur Green Applications
Sulfur Green demonstrates exceptional performance in various applications:
- Coatings: Industrial coatings, powder coatings, automotive finishes
- Plastics: PVC, polyolefins, engineering plastics
- Construction: Concrete coloring, roofing granules
- Inks: Printing inks, security inks
- Specialty: Ceramics, glass, cosmetic formulations
Sulfur Green FAQ
Q: What makes Sulfur Green different from other green pigments?
A: Sulfur Green offers superior heat stability and chemical resistance compared to organic green pigments. Its inorganic nature provides excellent UV resistance, making it ideal for outdoor applications where color retention is critical.
Q: How should Sulfur Green be stored for maximum shelf life?
A: Store Sulfur Green in its original packaging in a cool, dry place away from direct sunlight. The pigment remains stable for at least 5 years when stored properly at temperatures below 35°C (95°F) with relative humidity below 65%.
Q: What safety precautions should be taken when handling Sulfur Green?
A: While Sulfur Green is non-toxic and meets most international safety standards, we recommend using standard industrial hygiene practices. Use appropriate dust control measures during handling, and wear protective gloves and eye protection when working with large quantities.
Technical Performance Data
| Medium | Recommended Loading (%) | Color Strength | Compatibility |
|---|---|---|---|
| PVC | 0.5-2.0 | Excellent | Full |
| Polyolefins | 0.3-1.5 | Good | Full |
| Alkyd Paints | 5-20 | Excellent | Full |
| Epoxy Systems | 3-15 | Excellent | Full |
Regulatory Compliance
Sulfur Green meets or exceeds the following regulatory standards:
- REACH registered
- FDA 21 CFR 178.3297 compliant
- Meets EN 71-3 toy safety standards
- RoHS and EU Ecolabel compliant
- NSF/ANSI 61 certified for drinking water contact
Additional Sulfur Green FAQ
Q: Can Sulfur Green be used in food contact applications?
A: Yes, specific grades of Sulfur Green are approved for limited food contact applications under FDA 21 CFR 178.3297 regulations. Please consult our technical team for the appropriate product grade for your specific food contact requirements.
Q: What is the recommended dispersion method for Sulfur Green in paint systems?
A: For optimal results in paint systems, we recommend pre-mixing Sulfur Green with a portion of the binder before adding to the main batch. Use high-speed dispersers or bead mills for full color development. The pigment typically disperses to Hegman 7 within 15-20 minutes of proper milling.
Q: Does Sulfur Green contain any heavy metals?
A: Our Sulfur Green formulation is specifically engineered to be free from lead, cadmium, mercury, and other restricted heavy metals while maintaining excellent color properties. Each batch undergoes rigorous testing to ensure compliance with global environmental standards.