Description

Iron(III) Oxide CAS NO 1309-37-1, commonly known as ferric oxide, is a high-purity inorganic compound serving as a fundamental industrial pigment and functional material. Its consistent quality and reliable performance are critical for manufacturers requiring stable coloration, magnetic properties, or catalytic activity. This product is essential for industries including construction, electronics, coatings, and chemical manufacturing, where it acts as a key raw material for pigments, polishing agents, magnetic media, and catalysts.

Application

• Pigments and Colorants: Widely used as a durable red, brown, or yellow pigment in paints, coatings, construction materials (concrete, paving stones), plastics, and ceramics.
• Polishing and Abrasives: Employed in the formulation of fine polishing compounds for precious metals, glass, and optical lenses due to its specific hardness.
• Magnetic Recording Media: A key component in the production of magnetic tapes, disks, and other data storage materials.
• Chemical Catalyst & Precursor: Used as a catalyst in chemical processes such as the Haber process for ammonia synthesis and as a precursor for producing other iron compounds.
• Metallurgy & Welding: Serves as a source of iron in thermite reactions and as a component in welding rod coatings.
• Electronic Components: Utilized in the manufacture of ferrites for transformers, inductors, and magnetic cores.
• Jewelry and Cosmetics: Used as a colorant in certain types of jewelry polishing (rouge) and in cosmetic products where approved.
• Environmental Remediation: Applied in water treatment and as an adsorbent for heavy metal removal.

Basic Information

Product Name	Iron(III) Oxide
CAS No.	1309-37-1
Molecular Formula	Fe2O3
Molecular Weight	159.69 g/mol
Synonyms	Ferric Oxide; Iron Oxide Red; Red Iron Oxide; CI 77491; CI Pigment Red 101; Hematite; Jeweler's Rouge; Iron Sesquioxide; Diiron Trioxide
EINECS	215-168-2

Quality Control

Our Iron(III) Oxide is manufactured under a stringent quality management system to ensure batch-to-batch consistency and compliance with relevant industrial and compositional standards. Each production lot undergoes comprehensive analysis for purity, heavy metal content, particle size distribution, and color strength. A Certificate of Analysis (COA) documenting these results is provided with every shipment to guarantee traceability and support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong reducing agents. The product is stable under normal storage conditions but may absorb moisture over time if the container seal is compromised.

Specification

Item	Specification
Appearance	Red to reddish-brown powder
Identification (IR)	Conforms to standard
Assay (Fe2O3)	≥ 96.0 %
Loss on Drying	≤ 1.0 %
Water-soluble matter	≤ 0.5 %
Acid-insoluble matter	≤ 1.0 %
Particle Size (Typical)	Contact for details
Heavy Metals (as Pb)	≤ 0.005 %
Arsenic (As)	≤ 0.0003 %
Lead (Pb)	≤ 0.001 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.