Zinc Stearate (CAS 557-05-1) Comprehensive User Guide
Table of Contents
- 1. Product Overview & Specifications
- 2. Key Applications & Industry Uses
- 3. Operational Guidelines & Safety
- 4. Case Studies & Client Success Stories
- 5. Request Customized Solutions
1. Product Overview & Specifications
Zinc Stearate (CAS 557-05-1) is a zinc-based stearic acid salt widely used as a lubricant, release agent, and stabilizer. Below are its key parameters:
| Parameter | Value |
|---|---|
| CAS Number | 557-05-1 |
| Molecular Formula | Zn(C18H35O2)2 |
| Appearance | White fine powder |
| Melting Point | 120-130°C |
| Zinc Content | 10.5% – 11.5% |
Grade Comparison
| Grade | Purity | Moisture | Particle Size (µm) |
|---|---|---|---|
| Industrial | ≥98% | ≤1.5% | 5-15 |
| Pharmaceutical | ≥99.5% | ≤0.5% | 2-8 |
2. Key Applications & Industry Uses
2.1 Plastics & Rubber
Acts as a mold release agent and lubricant in PVC, polyolefins, and rubber compounds, reducing friction during extrusion.
2.2 Coatings & Paints
Improves sanding properties in wood coatings and prevents pigment settling in industrial paints.
2.3 Pharmaceuticals
Used as a tablet/capsule lubricant to enhance manufacturing efficiency in high-speed pill presses.
3. Operational Guidelines & Safety
Storage
Store in sealed containers at <30°C, away from strong oxidizers and acids.
Handling
- Use NIOSH-approved respirators when handling powder.
- Ensure local exhaust ventilation in processing areas.
4. Case Studies & Client Success Stories
Case 1: Automotive Plastic Parts Manufacturer
Challenge: Sticking in ABS component molding.
Solution: 0.8% zinc stearate additive.
Result: 40% reduction in demolding defects.
Case 2: Cosmetic Compact Powder Producer
Challenge: Uneven texture in pressed powders.
Solution: 3% micronized zinc stearate.
Result: 90% improvement in product consistency.
5. Request Customized Solutions
Contact our technical team for formulation support or sample requests:
Email: info@vivalr.com
Tel: (86) 15866781826
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