Methyl 2-Hydroxyethyl Cellulose (MHEC) Cas 9032-42-2: Comprehensive User Guide
Table of Contents
1. Product Overview & Specifications
Methyl 2-Hydroxyethyl Cellulose (MHEC) (CAS 9032-42-2) is a non-ionic cellulose ether derivative widely used as a thickener, water retention agent, and stabilizer. Key parameters include:
| Parameter | MHEC-15L | MHEC-40M | MHEC-75H |
|---|---|---|---|
| Viscosity (2% aq.) | 15,000 mPa·s | 40,000 mPa·s | 75,000 mPa·s |
| Methoxy Content | 28-30% | 27-29% | 26-28% |
| Hydroxyethyl Content | 8-12% | 7-10% | 6-9% |
| pH Stability | 3-11 | 3-11 | 3-11 |
2. Key Applications & Industrial Uses
MHEC serves critical functions across industries:
- Construction Materials: Enhances workability in cement-based mortars (0.2-0.6% dosage)
- Pharmaceuticals: Matrix former in extended-release tablets (10-25% w/w)
- Paints & Coatings: Provides sag resistance in water-based paints (0.3-1.0% addition)
- Personal Care: Stabilizer in shampoos at 0.5-2.0% concentration
3. Technical Performance & Comparative Analysis
| Property | MHEC | HPMC | CMC |
|---|---|---|---|
| Thermal Gelation | None | 60-90°C | N/A |
| Ionic Character | Non-ionic | Non-ionic | Anionic |
| Salt Tolerance | Excellent | Good | Poor |
4. Practical Usage Scenarios
Tile Adhesive Formulation
Optimal performance achieved with 0.4% MHEC-40M:
- Open time extension: 25-30 minutes
- Wet adhesion strength: ≥1.2 MPa
5. Verified Customer Case Studies
Case 1: European Construction Supplier
Client: BAUWERK Materials GmbH
Challenge: Reduce cracking in self-leveling compounds
Solution: 0.35% MHEC-15L addition
Result: 40% reduction in shrinkage cracks
Case 2: Asian Pharma Manufacturer
Client: Medisyn Labs (Shanghai)
Challenge: Sustain drug release over 12 hours
Solution: 18% MHEC-75H matrix
Result: Zero-order release profile achieved
6. Consultation & Custom Solutions
Request technical specifications or application support:
Email: info@vivalr.com
Tel: (86) 15866781826
Our chemical engineers provide:
- Free sample testing
- Dosage optimization studies
- Regulatory compliance guidance
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