Chromic Acid Cas 7738-94-5

Chromic Acid (CAS 7738-94-5) Comprehensive Guide

Table of Contents

• 1. Product Overview & Specifications
• 2. Applications & Industrial Uses
• 3. Usage Guidelines & Best Practices
• 4. Case Studies
• 5. Client Success Stories
• 6. Request Quotation

1. Product Overview & Specifications

Chromic Acid (CAS 7738-94-5), also known as Chromium Trioxide, is a strong oxidizing agent with molecular formula H₂CrO₄.

2. Applications & Industrial Uses

• Metal Finishing: Chromic acid anodizing for aluminum corrosion resistance
• Wood Preservation: Component in CCA (Chromated Copper Arsenate) treatments
• Glass Etching: Precision surface modification in optics manufacturing
• Organic Synthesis: Oxidation catalyst in pharmaceutical intermediates

3. Usage Guidelines & Best Practices

Electroplating Process Example:

1. Prepare 200-400 g/L chromic acid solution
2. Maintain bath temperature at 40-50°C
3. Use lead or lead-alloy anodes
4. Apply 15-25 A/dm² current density

4. Case Studies

5. Client Success Stories

Case 1: German Automotive Supplier

• Challenge: Chrome peeling on luxury car trim
• Solution: Modified chromic acid concentration (250 → 300 g/L)
• Result: 40% reduction in defect rate

Case 2: US Aerospace Manufacturer

• Challenge: FAA compliance for aluminum parts
• Solution: MIL-A-8625 compliant anodizing process
• Result: Achieved 5000-hour salt spray resistance

6. Request Quotation

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