Description

Iron Oxide Black CAS NO 12227-89-3 is a high-performance, inorganic synthetic pigment known for its deep black color and excellent stability. This compound is critical for providing durable, opaque coloration and functional properties in a wide range of industrial materials. It is an essential raw material for manufacturers in the construction, coatings, plastics, and specialty chemical sectors seeking consistent quality and reliable supply.

Application

• Construction Materials: A primary pigment for coloring concrete, paving stones, roofing tiles, and mortar, offering excellent UV resistance and weatherability.
• Paints and Coatings: Used in industrial paints, marine coatings, and architectural finishes for its strong tinting strength, opacity, and corrosion-inhibiting properties.
• Plastics and Polymers: Imparts a stable black color to PVC, polyolefins, engineering plastics, and masterbatches, with good dispersion and heat stability.
• Specialty Applications: Employed in the manufacture of magnetic inks, toners, ferrites, and as a polishing compound for glass and metals.
• Cosmetics and Personal Care: Used as a colorant in certain cosmetic products where a pure, stable black pigment is required, subject to appropriate regulatory compliance.

Basic Information

Product Name	Iron Oxide Black
CAS No.	12227-89-3
Molecular Formula	Fe3O4 / FeO·Fe2O3
Molecular Weight	231.53 g/mol
Synonyms	Magnetite; Ferrosoferric Oxide; Black Iron Oxide; Iron(II,III) Oxide; CI 77499; Pigment Black 11; Magnetic Iron Oxide; Triiron Tetraoxide
EINECS	235-442-5

Quality Control

Our Iron Oxide Black is manufactured under a strict quality management system to ensure batch-to-batch consistency and performance. Quality parameters are verified against relevant industry standards, including those for color strength, particle size distribution, and chemical purity. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and heavy metal content is provided with every shipment to guarantee compliance with your specifications.

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 acids. The product is not hygroscopic under normal storage conditions but should be protected from prolonged exposure to moisture to prevent caking.

Specification

Item	Specification
Appearance	Fine Black Powder
Identification (IR)	Conforms to Standard
Assay (as Fe3O4)	≥ 96.0 %
Color Strength	95 - 105 % of Standard
Oil Absorption	15 - 25 g/100g
Residue on Sieve (325 mesh)	≤ 0.5 %
Water Soluble Matter	≤ 0.5 %
pH Value (10% slurry)	5.0 - 8.0
Loss on Drying (105°C)	≤ 1.0 %
Heavy Metals (as Pb)	≤ 50 ppm

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