Sodium Alginate Ceramic Binder
CAS Number: 9005-38-3
Sodium alginate is a natural polysaccharide binder derived from brown seaweed, used in traditional and technical ceramics for slip casting, extrusion, and pelletizing. It forms strong hydrogel networks in the presence of calcium ions, providing excellent green strength and shape stability. Sodium alginate is a sustainable, bio-based binder alternative.
Technical Specifications
| appearance | White to light yellow powder |
| purity (%) | ≥93 |
| moisture (%) | ≤15 |
| pH (1% solution) | 6–8 |
| viscosity (1% aq, mPa·s) | 200–600 |
Applications
- Slip casting binder for traditional and technical ceramics
- Extrusion plasticizer and binder for ceramic bodies
- Pelletizing binder for ceramic granulation
- Binder for ceramic refractory shapes
- Gel-casting aid for complex net-shape ceramic components
Key Features
- Bio-based and renewable, reducing environmental footprint
- Ionic crosslinking with Ca2+ provides superior green strength
- Good compatibility with clay-based and oxide ceramic systems
- Clean thermal decomposition suitable for standard sintering cycles
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CAS Number
9005-38-3
Category
Ceramic / Glass AdditivesAvailability
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