Lanthanum(3+) Stearate (CAS 14741-67-4): Comprehensive User Guide
Table of Contents
1. Product Overview & Specifications
Lanthanum Stearate (CAS 14741-67-4) is a rare-earth metal carboxylate with the chemical formula La(C18H35O2)3. Widely used as a thermal stabilizer and lubricant additive.
Key Parameters
| Parameter | Value |
|---|---|
| Appearance | White fine powder |
| Melting Point | 110-125°C (decomposes) |
| La Content | 8.5-9.5% |
| Acid Value | <180 mg KOH/g |
2. Key Applications & Industrial Uses
Core Functional Benefits
- ✔️ Superior thermal stability for PVC processing
- ✔️ Excellent lubrication in polymer extrusion
- ✔️ Acid scavenging in hydrocarbon systems
Industry-Specific Implementations
| Industry | Function | Performance Benefit |
|---|---|---|
| PVC Manufacturing | Primary stabilizer | Prevents early coloration at 200°C+ |
| Lubricant Production | Friction modifier | Reduces COF by 40-60% |
3. Performance Comparison with Alternatives
| Parameter | La Stearate | Ca Stearate | Zn Stearate |
|---|---|---|---|
| Thermal Stability | ★★★★☆ | ★★★☆☆ | ★★☆☆☆ |
| Lubricity | ★★★★★ | ★★★☆☆ | ★★☆☆☆ |
4. Practical Implementation Cases
Case 1: PVC Pipe Stabilization
Dosage: 1.2-1.8 phr
Result: Extended processing window by 15-20 minutes at 210°C
Case 2: Engineering Plastics
Application: 0.5% in POM
Outcome: Reduced die buildup by 70%
5. Verified Customer Success Stories
Client A: GreenTech Polymers (Germany)
Challenge: Yellowing in rigid PVC profiles
Solution: 1.5% La Stearate additive
Outcome: 300hr UV resistance improvement
Client B: AsiaPlast Co. (China)
Issue: Excessive torque in ABS extrusion
Resolution: 0.8% La Stearate masterbatch
Result: 22% energy cost reduction
6. Technical Support & Inquiry
Contact our material science experts for formulation guidance or sample requests:
✉️ info@vivalr.com
(86) 15866781826
Request SDS/TDS documents or discuss custom concentration requirements.
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