Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Croda Dispersol BB4 Wetting Agent

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

Effect of Croda Dispersol BB4 Wetting Agent

  1. Excellent steric hindrance - Effectively inhibits particle agglomeration and improves long-term storage stability of agricultural preparations

  2. Integrated dual functions - Combines wetting and dispersion effects to optimize formula performance in one stop

  3. Outstanding sodium salt characteristics - Good solubility, suitable for aqueous agricultural systems and convenient construction

  4. Obvious high molecular weight advantage - High molecular weight structure, better wetting and dispersion efficiency than conventional anionic surfactants

  5. Strong compound compatibility - Compatible with various agricultural adjuvants and active ingredients, no compatibility conflicts

Typical Applications of Croda Dispersol BB4 Wetting Agent

  1. Agricultural suspension concentrates - Improve the dispersibility of solid components and avoid stratification and precipitation

  2. Wettable powder formulations - Improve wetting and dissolution speed and enhance dispersion uniformity

  3. Seed treatment preparations - Enhance wetting and penetration effects and improve the adhesion of active ingredients

  4. Micronutrient preparations - Promote the dispersion of nutrients and improve crop absorption efficiency

  5. Pesticide compounding systems - Optimize multi-component compatibility and improve the overall application effect of preparations

Technical Data of Croda Dispersol BB4 Wetting Agent

BrandCroda
Chemical TypeAnionic Wetting Agent; Sodium Dioctyl Sulfosuccinate
Chemical CompositionSodium Dioctyl Sulfosuccinate
Active Ingredient Content≥98% (typical value)
Product FormSolid (25℃)
IonicityAnionic
HLB Value13.0-15.0 (typical value)
Bulk Density0.75-0.85g/cm³ (typical value)
Melting Point103-107℃ (typical value)
SolubilityWater-soluble
pH Value (1% aq. sol.)5.5-7.0 (typical)
Surface Tension (0.1%)25-30 mN/m (typical)


Croda Dispersol BB4 Wetting Agent – Frequently Asked Questions (FAQ)

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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