Product Description
Sodium Carboxymethyl Cellulose (CMC) is a water-soluble polymer derived from cellulose. It is chemically modified to introduce carboxymethyl groups, enhancing its solubility and performance in various applications, particularly in the ceramics industry.
Physical and Chemical Properties
- Appearance: White to off-white powder
- pH Value: 6.0-8.0
- Purity: 95%
- Solubility: Easily soluble in both cold and hot water
- Viscosity: Varies depending on the grade, typically ranging from low to high viscosity
- Molecular Weight: Approximately 90,000 g/mol
- Degree of Substitution (DS): Typically between 0.6 and 1.2
| ITEM | D.S | Viscosity
1% Brookfield | Purity | PH | Moisture |
| GAC-1 | ≥0.95 | 300-500 | ≥95 | 6-8 | 7-10 |
| GAC-2 | ≥0.90 | 800-1200 | |||
| GAC-3 | ≥0.95 | 200-400 | |||
| GAC-4 | ≥0.80 | 800-1200 | |||
| GAC-5（Instant Soluble） | ≥0.95 | 500-700 | |||
| GAC-6（Instant Soluble） | ≥0.95 | 800-1000 | |||
| GAC-CH | ≥1.0 | 1500-1700 |
Applications in Ceramics
- Thickening Agent: Enhances the viscosity of ceramic slurries, improving their ability to carry and suspend particles.
- Binder: Acts as a binder in ceramic formulations, improving the strength and integrity of the ceramic body.
- Plasticizer: Increases the plasticity of ceramic bodies, making them easier to shape and mold.
- Dispersant: Helps in maintaining a stable dispersion of particles in ceramic slurries.
- Stabilizer: Stabilizes the physical and chemical properties of ceramic glazes and slurries.
- Water Retention Agent: Improves the water retention capacity of ceramic bodies, ensuring uniform drying and reducing cracking.
Performance Characteristics
- Filtration Control: Reduces the filtration rate of ceramic slurries, helping to maintain stability and reduce fluid loss.
- Rheology Modification: Improves the rheological properties of ceramic slurries, ensuring better flow characteristics and hole cleaning efficiency.
- Surface Tension: Increases the surface tension of glaze slurries, improving their adhesion and reducing defects like pinholes.
Handling and Storage
- Storage Conditions: Store in a cool, dry place away from direct sunlight. The product should be kept in its original packaging until use to prevent contamination.
- Shelf Life: 24 months under recommended storage conditions.
Safety Information
- Handling Precautions: Avoid inhalation of dust. Use appropriate personal protective equipment (PPE) such as gloves and goggles when handling the product.
- Environmental Precautions: Dispose of the product in accordance with local regulations. Avoid release into the environment.