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High-performance anionic polyelectrolyte based on polyacrylic acid, optimized for colloidal stabilization.
Excellent dispersion and viscosity-modifying properties in aqueous systems across a broad pH range (pH 4–10).
Low foaming profile—ideal for high-shear industrial cleaning and formulation processes where foam control is critical.
Good compatibility with nonionic surfactants, chelating agents, and common builders in complex detergent matrices.
Biodegradable backbone and REACH-compliant; supports sustainable product design without compromising performance.
Heavy-duty liquid laundry detergents and automatic dishwashing formulations.
Industrial and institutional (I&I) hard-surface cleaners for metal, tile, and glass substrates.
Dispersion stabilizer in pigment concentrates and water-based coatings.
Viscosity enhancer and anti-settling agent in agrochemical suspension concentrates (SCs).
Performance additive in oilfield scale inhibitors and drilling fluid rheology modifiers.
| Chemical Type | Anionic polyacrylic acid copolymer |
| Product Form | Aqueous solution (~30% active content) |
| Appearance | Clear to slightly opalescent, low-viscosity liquid |
| pH (1% aqueous solution) | 3.5–4.5 |
| Density (20 °C) | ~1.05–1.08 g/cm³ |
| Solubility | Completely miscible with water; limited solubility in organic solvents |
| Storage Stability | ≥12 months at 5–30 °C in sealed original container |
| Primary Applications | Dispersion, stabilization, viscosity control, and anti-redeposition in aqueous systems |
Q1: What is the primary function of Sokalan CP 9 in industrial formulations?
A: Sokalan CP 9 is a polyacrylate-based polyelectrolyte surfactant designed primarily for dispersion stabilization and rheology modification. It helps prevent particle agglomeration in aqueous systems and contributes to viscosity control, especially in pigment-rich or high-solids formulations.
Q2: Is Sokalan CP 9 suitable for use in low-VOC or waterborne coatings?
A: Yes — Sokalan CP 9 is fully water-soluble and contains no organic solvents or APEOs. Its anionic character and compatibility with common co-binders make it well-suited for modern waterborne architectural, industrial, and automotive coating systems aiming for reduced environmental impact.
Q3: How does Sokalan CP 9 compare to traditional non-ionic surfactants in terms of electrolyte tolerance?
A: Unlike many non-ionic surfactants, Sokalan CP 9 exhibits good stability in the presence of moderate levels of salts and hard water ions due to its polyacrylate backbone and controlled charge density. However, performance may diminish under very high ionic strength conditions, so formulation optimization is recommended.
Q4: Can Sokalan CP 9 be used in combination with other rheology modifiers or associative thickeners?
A: Yes — Sokalan CP 9 is generally compatible with cellulose ethers, hydrophobically modified alkali-swellable emulsions (HASE), and some urethane thickeners. Synergistic effects on suspension stability and sag resistance have been observed, though compatibility testing under actual formulation conditions is advised.
Q5: What is the typical dosage range for Sokalan CP 9 in pigment dispersion applications?
A: Dosage depends on pigment type, loading, and desired dispersion stability, but it is typically used at low concentrations — generally ranging from 0.1% to 2% by weight relative to pigment solids. Optimal levels are best determined through lab-scale dispersion trials and stability assessment.
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