Description

Chromeoxidegreen1 CAS NO 308-38-9 is a high-purity inorganic pigment based on chromium(III) oxide (Cr₂O₃). This compound is valued for its exceptional chemical stability, excellent lightfastness, and vibrant, permanent green color. It is a critical raw material for industries requiring durable, non-toxic, and heat-resistant pigments. Key sectors include coatings, plastics, ceramics, and construction materials.

Application

• Pigments and Colorants: Primary use as a green pigment in industrial paints, automotive coatings, and architectural finishes due to its weather resistance.
• Plastics and Polymers: Coloring agent for engineering plastics, masterbatches, and vinyls, offering stability during high-temperature processing.
• Ceramics and Glass: Imparts green coloration to ceramic glazes, porcelain enamels, and specialty glass, stable at firing temperatures.
• Construction Materials: Used in colored concrete, roofing granules, and paving stones for long-lasting, UV-resistant color.
• Abrasive and Polishing Compounds: Component in fine polishing powders for metals and optical lenses due to its hardness.
• Specialty Inks: Formulation of security inks and other specialty printing inks where chemical inertness is required.
• Refractory Materials: Additive to improve the properties of high-temperature refractory bricks and castables.

Basic Information

Product Name	Chromeoxidegreen1
CAS No.	308-38-9
Molecular Formula	Cr₂O₃
Molecular Weight	151.99 g/mol
Synonyms	Chromium(III) Oxide; Chromia; Dichromium Trioxide; Chrome Oxide Green; Chromium Sesquioxide; Green Chrome Oxide; Anadonis Green; Oil Green; CI 77288; Pigment Green 17
EINECS	206-160-4

Quality Control

Our Chromeoxidegreen1 is manufactured under a strict quality management system. Each batch is tested to ensure it meets precise specifications for color strength, particle size distribution, and chemical purity. We provide comprehensive Certificates of Analysis (COA) with key parameters including assay, heavy metal content, and sieve residue. Our quality commitment ensures consistent performance and reliable supply for your critical applications.

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. The container must be kept tightly closed to prevent moisture absorption.

Specification

Item	Specification
Appearance	Fine green powder
Identification (IR)	Conforms
Assay (Cr₂O₃)	≥ 99.0 %
Color Strength	100 ± 5 % (vs. Std.)
Particle Size (D50)	0.5 - 2.0 µm
Residue on Sieve (45µm)	≤ 0.5 %
Oil Absorption	15 - 25 g/100g
Loss on Drying (105°C)	≤ 0.5 %
Water-soluble salts	≤ 0.5 %
Heavy Metals (as Pb)	≤ 50 ppm

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