Croda Dispersol BB4 is a high-molecular-weight aromatic ring anionic surfactant launched by Croda, which is a sodium salt type, specially developed and designed for various agricultural formulations, with dual functions of high-efficiency wetting and dispersion. It has excellent steric hindrance effect, can effectively improve system stability, is compatible with various agricultural active ingredients, easy to compound and process
Excellent steric hindrance - Effectively inhibits particle agglomeration and improves long-term storage stability of agricultural preparations
Integrated dual functions - Combines wetting and dispersion effects to optimize formula performance in one stop
Outstanding sodium salt characteristics - Good solubility, suitable for aqueous agricultural systems and convenient construction
Obvious high molecular weight advantage - High molecular weight structure, better wetting and dispersion efficiency than conventional anionic surfactants
Strong compound compatibility - Compatible with various agricultural adjuvants and active ingredients, no compatibility conflicts
Agricultural suspension concentrates - Improve the dispersibility of solid components and avoid stratification and precipitation
Wettable powder formulations - Improve wetting and dissolution speed and enhance dispersion uniformity
Seed treatment preparations - Enhance wetting and penetration effects and improve the adhesion of active ingredients
Micronutrient preparations - Promote the dispersion of nutrients and improve crop absorption efficiency
Pesticide compounding systems - Optimize multi-component compatibility and improve the overall application effect of preparations
| Brand | Croda |
| Chemical Type | Anionic Wetting Agent; Sodium Dioctyl Sulfosuccinate |
| Chemical Composition | Sodium Dioctyl Sulfosuccinate |
| Active Ingredient Content | ≥98% (typical value) |
| Product Form | Solid (25℃) |
| Ionicity | Anionic |
| HLB Value | 13.0-15.0 (typical value) |
| Bulk Density | 0.75-0.85g/cm³ (typical value) |
| Melting Point | 103-107℃ (typical value) |
| Solubility | Water-soluble |
| pH Value (1% aq. sol.) | 5.5-7.0 (typical) |
| Surface Tension (0.1%) | 25-30 mN/m (typical) |
Q1: What is the primary function of Dispersol BB4 in pigment dispersions?
A: Dispersol BB4 is a non-ionic surfactant designed to reduce surface tension and promote rapid, uniform wetting of hydrophobic pigments and fillers in aqueous systems, supporting stable dispersion development and minimizing agglomeration.
Q2: Is Dispersol BB4 compatible with common water-based coating and ink formulations?
A: Yes — Dispersol BB4 demonstrates broad compatibility with acrylic, styrene-acrylic, PUDs, and other waterborne polymer systems, as well as with typical co-surfactants, thickeners, and defoamers used in architectural coatings, industrial coatings, and liquid inks.
Q3: How does Dispersol BB4 compare to traditional alkylphenol ethoxylates (APEOs) in terms of environmental profile?
A: Dispersol BB4 is an APEO-free, readily biodegradable alternative formulated to meet evolving regulatory expectations for sustainable surfactant use, without compromising wetting efficiency or dispersion stability in demanding applications.
Q4: What is the recommended dosage range for optimal performance?
A: Dosage is formulation-dependent, but Dispersol BB4 is typically effective at low concentrations — generally ranging from 0.1% to 2% by weight relative to pigment solids — with optimization best determined through lab-scale dispersion trials.
Q5: Can Dispersol BB4 be used in high-shear or low-shear dispersion processes?
A: Yes — Dispersol BB4 performs effectively across a range of dispersion energy inputs, including both high-shear media milling and low-shear stir-in processes, offering consistent wetting and stabilization under varied manufacturing conditions.
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