Surface Treatment SolutionsFormula: CrO₃Purity: ≥ 99.7%

Chromic Acid

High-performance Chromic Acid formulated for metal finishing and industrial treatment processes requiring strong oxidation and corrosion resistance properties.

⚙️ Technical Specifications

Parameter / ElementStandard Value
Chemical FormulaCrO₃
Molecular Weight99.99 g/mol
Appearance & ColorDark red / purple deliquescent flakes
Chromic Anhydride (CrO3)≥ 99.7%
Sulphate (SO4)≤ 0.15%
Insoluble Matter≤ 0.01%
Sodium (Na)≤ 0.05%
Iron (Fe)≤ 10 ppm

🏭 Industrial Usage & Process Guidance

Widely used in functional hard chrome plating for aerospace and heavy engineering to deposit ultra-hard, wear-resistant coatings (700-1000 HV). Also used in decorative plating on automotive trim, chemical passivation coatings on copper and zinc, and as an etchant for polymer plastics.

Target Applications:

✓ Chrome plating✓ Surface treatment✓ Metal finishing✓ Industrial oxidation✓ Corrosion protection

📦 Packaging & Storage

Available Packaging:

  • 50 kg Steel Drums
  • 100 kg Steel Lock-ring Drums

Storage Instructions:

Class 5.1 Oxidizer. Store in original hermetically sealed steel drums. Keep away from combustible, organic, or flammable materials.

⚠️ Safety & Safe Handling

  • •Oxidizer. Can cause fire when in contact with organic chemicals.
  • •Corrosive, carcinogen, and mutagen. Causes severe burns.
  • •Wear full acid-resistant rubber suit, neoprene gloves, boots, and full-face breathing apparatus.

Quality Standards:

ISO 9001:2015RoHS CompliantREACH Registered

Frequently Asked Questions about Chromic Acid

What is the catalyst ratio for Chromic Acid baths?

Standard chromium baths operate with a weight ratio of CrO3 to Sulphate (SO4) between 100:1 and 120:1. Precision adjustments can be made via our bulk supply certificates.

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