Description

Dicopper Chromate Oxide CAS NO 18906-50-8 is an inorganic compound primarily used as a corrosion-inhibiting pigment. This material is valued for its ability to provide long-term protection to metal substrates in harsh environments. It is a critical raw material for formulators in the protective coatings, paints, and primers industries seeking effective, non-toxic alternatives for metal preservation.

Application

• As a corrosion-inhibiting pigment in industrial primers and protective coatings for steel structures, bridges, and marine equipment.
• In the formulation of anticorrosive paints for automotive underbody coatings and chassis components.
• For the production of specialty pigments used in high-performance maintenance paints for the oil & gas and chemical processing industries.
• As an additive in wood preservative treatments to protect against fungal decay and insect damage.
• In the manufacture of ceramic glazes and colored glass, where it acts as a colorant and stabilizer.
• For research and development purposes in material science, studying new inorganic compounds and catalytic processes.

Basic Information

Product Name	Dicopper Chromate Oxide
CAS No.	18906-50-8
Molecular Formula	Cu₂CrO₄O (Commonly represented as Cu₂CrO₅)
Molecular Weight	243.08 g/mol
Synonyms	Copper Chromium Oxide; Copper Chromate Oxide; Dicopper Chromium Oxide; Cupric Chromate Oxide; Chromic Acid, Copper Salt; Basic Copper Chromate; Anticorrosive Pigment Brown; C.I. Pigment Brown 33
EINECS	242-668-1

Quality Control

Our Dicopper Chromate Oxide is manufactured under strict process controls to ensure batch-to-batch consistency and high performance. Quality is verified through a series of analytical tests including assay, heavy metal limits, and particle size distribution. A Certificate of Analysis (COA) documenting purity and key specifications is provided with every shipment to ensure compliance with your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and reducing agents. Keep container tightly sealed when not in use to minimize exposure to moisture.

Specification

Item	Specification
Appearance	Brown to reddish-brown powder
Identification (IR)	Conforms to standard
Assay (as Cu₂CrO₅)	≥ 95.0 %
Moisture Content	≤ 2.0 %
Particle Size (325 mesh residue)	≤ 1.0 %
Lead (Pb)	≤ 20 ppm
Water Soluble Matter	≤ 1.0 %

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