Anionic Dispersant
CAS Number: 36311-34-9
Sodium polynaphthalene sulfonate anionic dispersant used to deflocculate and stabilize inorganic pigments and fillers in waterborne systems via electrostatic repulsion. It is highly effective for titanium dioxide, calcium carbonate, kaolin, and talc dispersions, reducing viscosity and improving pigment utilization efficiency. Compatible with latex and alkali-soluble resin systems.
Technical Specifications
| pH | 7.0 – 10.0 |
| density | 1.15 – 1.25 g/cm³ |
| viscosity | 50 – 300 mPa·s (25°C) |
| appearance | Brown to dark liquid |
| active content | 40 – 45% |
Applications
- TiO₂ and inorganic pigment dispersions
- Calcium carbonate and kaolin slurries
- Waterborne architectural coatings
- Paper coating colors and pigment slurries
- Cement and concrete admixtures
Key Features
- Electrostatic stabilization of inorganic pigments
- Significantly reduces grind paste viscosity
- Improves TiO₂ spacing and opacity
- Compatible with alkaline waterborne systems
- Cost-effective for high-volume applications
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