Description

Chromic Acid is a powerful inorganic acid and a strong oxidizing agent, widely recognized for its critical role in industrial surface treatment and synthesis. Its primary value lies in its ability to produce durable, corrosion-resistant, and aesthetically pleasing finishes on metal substrates, making it indispensable for high-performance manufacturing. This compound is essential for industries such as metal finishing, aerospace, automotive, and chemical manufacturing, where precision and material integrity are paramount.

Application

• Metal Finishing & Electroplating: Primarily used for chrome plating (decorative and hard chrome) and as a key component in chromate conversion coatings for aluminum, zinc, and other metals to enhance corrosion resistance and paint adhesion.
• Surface Etching & Cleaning: Employed in the etching and cleaning of metal surfaces prior to plating, anodizing, or painting to ensure optimal adhesion and finish quality.
• Wood Treatment & Preservation: Acts as a component in wood preservatives and stains, providing protection against biological degradation.
• Chemical Synthesis & Catalyst: Serves as a potent oxidizing agent in organic synthesis and as a catalyst in various chemical manufacturing processes.
• Glass & Ceramics Industry: Used for etching and coloring glass, as well as in the production of specialized ceramics and pigments.
• Laboratory & Analytical Reagent: Utilized in analytical chemistry for cleaning laboratory glassware and in specific titration methods.

Basic Information

Product Name	Chromic Acid
CAS No.	7738-94-5
Molecular Formula	H2CrO4 / CrO3
Molecular Weight	118.01 g/mol (H2CrO4) / 99.99 g/mol (CrO3)
Synonyms	Chromic(VI) Acid; Chromium Trioxide; Chromic Anhydride; Chromium(VI) Oxide; Tetraoxochromic Acid; Chromic Acid Flake; Chromic Acid Solution; Anhydride Chromique
EINECS	231-801-5

Quality Control

Our Chromic Acid is manufactured under stringent quality management systems to ensure batch-to-batch consistency and high purity. We adhere to relevant industry standards and specifications for technical and electroplating grades. A comprehensive Certificate of Analysis (COA), detailing assay, impurity profiles, and physical parameters, is provided with each shipment to guarantee compliance with your specific requirements.

Storage

Preserve in a tightly closed, corrosion-resistant container, protected from light. Store in a cool, dry, well-ventilated area dedicated for oxidizers and strong acids. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture. Store away from incompatible materials such as organic compounds, reducing agents, and strong bases.

Specification

Item	Specification
Appearance	Dark red flakes, crystals or solution
Assay (as CrO3)	≥ 99.5 %
Identification (IR)	Conforms
Insoluble Matter	≤ 0.01 %
Chloride (Cl)	≤ 0.001 %
Sulfate (SO4)	≤ 0.005 %
Sodium (Na)	≤ 0.05 %
Potassium (K)	≤ 0.05 %

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