Iron Oxide Red — PR101 / CAS 1309-37-1

Description

1. Product Overview

Iron Oxide Red — PR101 / CAS 1309-37-1 is a high-performance inorganic pigment widely used across coatings, construction materials, plastics, and ceramics. It delivers strong tinting strength, excellent opacity, and long-term color stability under harsh environmental conditions. As a chemically stable iron oxide pigment, it provides superior resistance to UV degradation, weathering, and chemical exposure, making it a critical material in durable industrial formulations. Its strategic importance lies in its ability to ensure consistent, cost-effective coloration across large-scale manufacturing processes with minimal performance variation.

2. Key Specifications & Technical Characteristics

• Chemical Composition: Iron(III) oxide (Fe₂O₃)
• CAS Number: 1309-37-1
• Color Index: PR101 (Pigment Red 101)
• Appearance: Fine red powder
• Particle Size: Typically micronized (customizable depending on grade)
• Purity: Industrial / pigment grade ≥ 95% Fe₂O₃ (grade-dependent)
• Density: ~5.0 g/cm³ (true density)
• Oil Absorption: Low to moderate, formulation-dependent
• Packaging Options: 25 kg bags, 500 kg jumbo bags, bulk container shipments
• Shelf Life: Stable for 24–36 months under dry storage conditions

3. Core Industrial Applications

Iron Oxide Red PR101 is extensively used in construction, coatings, plastics, rubber, and ceramics industries as a primary red pigment and colorant. In concrete and cement products, it provides durable coloration for paving stones, tiles, bricks, and architectural materials without compromising structural integrity. In coatings and paints, it ensures high opacity, UV resistance, and long-term color retention, even in outdoor applications. Compared to organic pigments, it offers superior heat stability, lower cost per unit of performance, and significantly improved weather resistance, making it ideal for high-volume industrial production environments.

4. Competitive Advantages

• Exceptional Color Stability: Maintains consistent red hue under UV exposure and harsh weather conditions
• High Batch Consistency: Reliable pigmentation performance for industrial-scale formulations
• Global Supply Reliability: Suitable for long-term procurement and continuous production lines
• Cost Efficiency: Low-cost inorganic pigment with high durability per unit usage
• Environmental Compatibility: Non-toxic, heavy-metal-free pigment suitable for regulated markets
• Technical Support: Full documentation including COA, MSDS, and application guidance available upon request

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): Bulk orders starting from 20 MT
• Standard Supply Format: Industrial bulk packaging with flexible container loading options
• Loading Capacity: Up to 20–25 MT per 20’ FCL container (depending on packaging configuration)
• Delivery Scope: Global export supply with support for long-term contractual procurement arrangements