Cellulose Thickener (CMC)
CAS Number: 9004-32-4
Sodium carboxymethyl cellulose (CMC) thickener and stabilizer used in waterborne coatings, paper processing, adhesives, and construction chemicals. It provides pseudoplastic rheology, water retention, and colloidal stability in aqueous systems. Food-grade and industrial grades are available with a range of viscosity levels and degrees of substitution.
Technical Specifications
| pH | 6.5 – 8.5 (1% solution) |
| purity | ≥ 99.5% (dry basis) |
| viscosity | 800 – 1200 mPa·s (2% solution, 25°C) |
| appearance | White to cream powder |
| moisture content | ≤ 10.0% |
| degree of substitution | 0.65 – 0.95 |
Applications
- Waterborne coatings and pigment pastes
- Paper coating and sizing
- Construction adhesives and tile grouts
- Textile printing pastes
- Oil and gas drilling fluids
Key Features
- Cost-effective thickening and water retention
- Broad pH stability (pH 5–10)
- Compatible with most anionic and non-ionic systems
- Improves open time and workability
- Biodegradable and renewable resource