Description

Chromium Oxide CAS NO 11118-57-3 is a high-purity inorganic compound, also known as chromium(III) oxide or chromic oxide, valued for its exceptional chemical stability and distinctive green color. It serves as a critical industrial pigment and a versatile raw material in advanced material synthesis. This product is essential for manufacturers in the ceramics, refractory, metallurgical, and pigment industries seeking consistent quality and performance.

Application

• Pigments and Colorants: Primary use as a high-quality green pigment (Chromium Oxide Green) in paints, coatings, plastics, and construction materials.
• Refractory and Abrasive Materials: Key component in the production of refractory bricks and grinding media due to its high melting point and hardness.
• Metallurgical Processes: Used as a precursor in aluminothermic (thermite) reactions for chromium metal production and as an alloying additive.
• Ceramics and Glass: Imparts color and enhances properties in specialty ceramics, artistic glazes, and colored glass.
• Catalyst and Catalyst Support: Employed in certain organic synthesis and dehydrogenation reactions.
• Polishing Compounds: Fine-grade material used in the precision polishing of metals and optical components.

Basic Information

Product Name	Chromium Oxide
CAS No.	11118-57-3
Molecular Formula	Cr2O3
Molecular Weight	151.99 g/mol
Synonyms	Chromic Oxide; Chromium(III) Oxide; Dichromium Trioxide; Chromium Sesquioxide; Chromia; Green Chromium Oxide; Chrome Oxide Green; Anadonis Green; Vert Emeraude; C.I. 77288; C.I. Pigment Green 17
EINECS	234-630-4

Quality Control

Our Chromium Oxide is manufactured under stringent quality management systems to ensure batch-to-batch consistency and reliability. We provide comprehensive quality assurance, with product specifications meeting relevant industrial and chemical standards. A detailed Certificate of Analysis (COA) is supplied with each shipment, documenting key parameters such as purity, particle size, and impurity content.

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

Specification

Item	Specification
Appearance	Fine green powder
Identification (IR)	Conforms
Assay (as Cr2O3)	≥ 99.0 %
Particle Size (D50)	1 - 5 µm (customizable)
Loss on Drying (105°C)	≤ 0.5 %
Water Soluble Matter	≤ 0.3 %
Iron (Fe)	≤ 0.1 %
Lead (Pb)	≤ 10 ppm

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