Zinc Chromate (CAS 13530-65-9): Technical Guide & Applications
Table of Contents
1. Product Specifications & Comparative Analysis
| Parameter | Zinc Chromate | Alternative Pigments |
|---|---|---|
| CAS Number | 13530-65-9 | Varies by compound |
| Molecular Formula | ZnCrO4 | PbCrO4 (Lead Chromate) |
| Density (g/cm³) | 3.40 | 6.12 (Lead Chromate) |
| Water Solubility | 2.6g/L (20°C) | Negligible (Lead Chromate) |
| Thermal Stability | Decomposes at 316°C | Stable up to 600°C |
| Regulatory Status | Controlled (R49/R50/53) | Restricted (Lead content) |
2. Functional Applications
Core Industrial Uses:
- Anti-Corrosion Systems: Primary component in aerospace & marine primer coatings
- Pigment Manufacturing: Key constituent in C.I. Pigment Yellow 36 formulations
- Polymer Engineering: UV-stabilizing additive in specialty plastics
- Surface Treatment: Conversion coating for aluminum alloys
Performance Advantages:
- Superior passivation properties compared to zinc phosphate
- Lower environmental impact vs. lead-based alternatives
- Enhanced adhesion in multilayer coating systems
3. Implementation Scenarios
Aerospace Application Protocol:
- Surface preparation (degrease & abrasive blast)
- Primer formulation: 60-65% zinc chromate by weight
- Electrostatic spray application
- Cure cycle: 30min @ 120°C
Marine Coating System:
| Layer | Zinc Chromate Content | Dry Film Thickness |
|---|---|---|
| Primer | 55-60% | 75-100μm |
| Mid-Coat | 15-20% | 50-75μm |
4. Industry Case Studies
Case 1: Aerospace Component Manufacturer
- Challenge: Corrosion protection for aluminum landing gear
- Solution: Zinc chromate-epoxy primer system
- Results: 8-year maintenance cycle achieved
Case 2: Offshore Platform Maintenance
- Challenge: Saltwater corrosion in splash zones
- Solution: High-build zinc chromate coating
- Results: 60% reduction in corrosion-related failures
5. Consultation & Procurement
For technical specifications or bulk purchasing:
| Contact Method | Details |
|---|---|
| Technical Support | Email: info@vivalr.com |
| Procurement Desk | Tel: (86) 15866781826 |
Request SDS documentation or application guides through our 24-hour response service.
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