Description

Chromium(III) Oxide is a high-purity inorganic compound essential for imparting durable green coloration and enhancing material properties. Its thermal stability and chemical inertness make it a critical component in demanding industrial and manufacturing processes. This material is primarily required by manufacturers in the pigments, refractory, metallurgical, and polishing industries for its consistent performance and reliability.

Application

• Pigments and Colorants: A key green pigment (Chromium Oxide Green) for ceramics, glass, paints, coatings, and plastics, valued for its lightfastness and chemical resistance.
• Refractory and Abrasive Materials: Used in the production of high-temperature refractory bricks and as a component in abrasive grains for precision polishing and lapping.
• Metallurgical Processes: Serves as a precursor in the aluminothermic (thermite) production of chromium metal and as an alloying additive.
• Catalyst and Catalyst Support: Employed as a catalyst or support in various organic synthesis and dehydrogenation reactions.
• Magnetic Media: Historically used in the manufacturing of magnetic tapes (chromium dioxide precursors).
• Specialty Ceramics and Glass: Imparts color and modifies the physical properties of specialty glass and advanced ceramic components.

Basic Information

Product Name	Chromium(III) Oxide
CAS No.	1308-38-9
Molecular Formula	Cr2O3
Molecular Weight	151.99 g/mol
Synonyms	Chromia; Dichromium Trioxide; Chromium Sesquioxide; Chrome Oxide Green; Chromium(3+) Oxide; Green Chromium Oxide; Anadonis Green; Vert Emeraude; C.I. 77288; C.I. Pigment Green 17
EINECS	215-160-9

Quality Control

Our Chromium(III) Oxide is manufactured under a stringent quality management system to ensure batch-to-batch consistency and high purity. Production adheres to relevant industrial standards, with rigorous in-process and final product testing for parameters such as purity, particle size distribution, and trace metal content. A Certificate of Analysis (COA) detailing all test results is provided with every shipment.

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 and strong reducing agents. The product is hygroscopic (moisture-sensitive); ensure containers are kept sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Fine green powder
Identification (IR)	Conforms
Assay (Cr2O3)	≥ 99.0 %
Particle Size (D50)	1 - 5 µm (or as specified)
Loss on Drying (105°C)	≤ 0.5 %
Water Soluble Matter	≤ 0.3 %
Chloride (Cl)	≤ 0.01 %
Sulfate (SO4)	≤ 0.05 %
Heavy Metals (as Pb)	≤ 0.005 %
Iron (Fe)	≤ 0.05 %

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