Ferric Oxide (Red Iron Oxide) CAS 1309-37-1

Ferric Oxide is a stable, non-toxic, inorganic chemical compound characterized by its deep red color and excellent chemical resistance. It is one of the most significant pigments in the global market due to its high opacity, strong tinting strength, and outstanding lightfastness. It is insoluble in water and resists the effects of alkalis and mild acids.

Our Ferric Oxide series is produced via advanced thermal decomposition or precipitation processes, ensuring a narrow particle size distribution. This results in superior dispersibility in various mediums, making it the preferred choice for construction materials, coatings, and high-performance ceramics.

Physicochemical Properties (Technical Data)

The following specifications represent our standard Micronized Pigment Grade (130 type), typical of high-quality Chinese export standards.

Applications

Ferric Oxide is a versatile material used across a broad spectrum of industries:

1. Construction & Paints (Pigment Grade):

• Building Materials: Widely used to color concrete, paving stones, bricks, and roofing tiles. Its alkali resistance ensures color longevity in cement-based products.
• Coatings: A primary pigment for anti-rust primers, architectural paints, and industrial enamels due to its excellent hiding power and UV stability.

2. Ceramics & Glass:

• Glazes: Acts as a flux and coloring agent in ceramic glazes, producing rich red, brown, or tan hues depending on the firing atmosphere.

3. Electronics & Magnetic Materials:

• Ferrites: High-purity Ferric Oxide is a critical precursor for soft magnetic ferrites used in transformers, inductors, and memory cores.

4. Pharmaceutical & Cosmetics (Specialty Grade):

• Cosmetics: Used as a safe colorant in foundations, lipsticks, and eye shadows (must meet heavy metal compliance).
• Polishing: “Jeweler’s Rouge” is a fine powder form used for polishing precious metals and optical lenses.

Quality Assurance (QA/QC)

At Industrochem, we understand that color consistency is key. Our facilities operate under ISO 9001:2015 standards, utilizing rigorous testing protocols:

• Color Matching: We employ advanced Spectrophotometers to measure Color Difference ($\mathrm{\Delta }E$ΔE) against the standard sample for every batch, ensuring no visible shade variation between shipments.
• Purity Analysis:
  • XRF (X-Ray Fluorescence): Used for rapid screening of elemental composition.
  • ICP-MS: Employed for high-purity grades (Pharma/Cosmetic) to strictly detect and control trace heavy metals (Lead, Arsenic, Mercury) in compliance with USP/BP/FDA regulations.
• Particle Sizing: Laser diffraction analysis ensures the mesh size meets the requirements for smooth dispersion in paints and plastics.

For white-pigment and opacity control in inorganic pigment systems, see Titanium Dioxide.

Storage, Handling & Safety

Storage Conditions:

• Environment: Store in a dry, cool, and well-ventilated area.
• Moisture Control: Ferric Oxide is generally stable but can absorb moisture over time, which may cause caking. Keep packaging tightly sealed.
• Separation: Store away from strong acids, although it is relatively chemically inert.

Safety Precautions (HSE):

• Dust Hazard: This product is a fine powder and constitutes a nuisance dust.
• PPE Recommendations:
  • Respiratory: A NIOSH-approved dust mask (N95) is highly recommended to prevent inhalation of iron dust, which can cause benign pneumoconiosis (siderosis) over long-term exposure.
  • Eyes: Wear safety goggles to prevent mechanical irritation.
  • Skin: Wear gloves and protective clothing to avoid staining of skin and personal garments.
• Spill Management: Sweep up or vacuum spills. Avoid using water initially as the red pigment is difficult to clean once wet and can stain surfaces permanently.

Source high-performance Iron Oxide Red directly from the manufacturer.

Whether you need bulk pigment for concrete or high-purity powder for electronics, we have the right grade.

👉 Get a Quote: info@industrochem.com