Iron Oxide Black — PBk11 / CAS 1317-61-9

Description

1. Product Overview

Iron Oxide Black (PBk11, CAS 1317-61-9) is a high-performance inorganic pigment widely used across industrial manufacturing sectors for its exceptional stability, deep coloration strength, and chemical inertness. It serves as a critical raw material in coatings, construction materials, plastics, and specialty applications where long-term color durability and weather resistance are required. The product delivers strong tinting strength, excellent UV resistance, and consistent batch-to-batch performance, making it a preferred choice for high-specification formulations. In global pigment supply chains, Iron Oxide Black holds strategic importance due to its cost efficiency, non-toxicity, and broad compatibility with diverse industrial systems.

2. Key Specifications & Technical Characteristics

• Chemical Composition: Fe₃O₄ (Magnetite-based Iron Oxide)
• CAS Number: 1317-61-9
• Color Index: PBk11
• Appearance: Fine black powder
• Purity: ≥ 98% (industrial grade, adjustable by application)
• Particle Size: Typically 0.1 – 5 microns (customizable grades available)
• Bulk Density: 0.8 – 1.2 g/cm³ (approx.)
• Oil Absorption: Low to moderate, formulation-dependent
• Packaging Options: 25 kg PP bags, 500–1000 kg jumbo bags, bulk export packaging
• Shelf Life: 24–36 months under dry, sealed storage conditions

3. Core Industrial Applications

Iron Oxide Black is extensively used in the production of architectural coatings, industrial paints, and protective surface systems where high opacity and weather resistance are required. It is a key pigment in construction materials such as concrete blocks, paving stones, and asphalt products, ensuring long-term color stability under harsh environmental exposure. In plastics and rubber industries, it provides uniform pigmentation while maintaining thermal stability during processing. Compared to organic black pigments, PBk11 offers superior UV resistance, non-fading performance, and lower lifecycle cost, making it ideal for heavy-duty industrial applications.

4. Competitive Advantages

• Superior Color Stability: Maintains deep black tone under UV, heat, and chemical exposure
• High Batch Consistency: Tight quality control ensures uniform performance across shipments
• Reliable Global Supply: Scalable production capacity for continuous industrial demand
• Cost Efficiency: Lower cost per performance cycle compared to carbon-based alternatives
• Eco-Safe Profile: Non-toxic, heavy-metal compliant, environmentally stable inorganic pigment
• Strong Technical Support: Full documentation including COA, MSDS, and application guidance available

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): 20 MT
• Supply Format: Bulk industrial supply / export-grade packaging
• Loading Capacity: ~20–25 MT per 20ft container (depending on packaging type and density)
• Delivery Terms: FOB / CIF / CFR available upon request
• Lead Time: 7–21 days depending on order volume and customization requirements