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

Croda Dispersol PSR 19 Wetting Agent

Croda Dispersol PSR 19 is a polymeric anionic wetting and dispersing agent launched by Croda, specially developed for various agricultural formulations, with dual core functions of high-efficiency wetting and dispersion. Relying on its unique polymeric structure, it has excellent adsorption capacity for pigments and solid particles and steric hindrance effect, is compatible with various agricultural active ingredients

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 PSR 19 Wetting Agent – Frequently Asked Questions (FAQ)

Q1: What is the primary function of Dispersol PSR 19 in pigment dispersion systems?

A: Dispersol PSR 19 is a high-performance wetting agent designed to reduce interfacial tension and promote rapid, uniform wetting of hydrophobic pigments and fillers in aqueous systems. It helps stabilize dispersions by enhancing particle deagglomeration and supporting long-term colloidal stability.


Q2: Is Dispersol PSR 19 suitable for use in low-VOC or zero-VOC coatings formulations?

A: Yes — Dispersol PSR 19 is a non-ionic, low-foaming surfactant with negligible volatile organic content, making it well-suited for environmentally compliant aqueous coatings, including architectural, industrial, and decorative applications targeting low- or zero-VOC regulatory frameworks.


Q3: How does Dispersol PSR 19 compare to conventional alkylphenol ethoxylates (APEOs) in terms of environmental profile?

A: Dispersol PSR 19 is an APEO-free, readily biodegradable alternative developed to meet evolving sustainability requirements. Unlike legacy APEO-based wetting agents, it avoids persistent, bioaccumulative metabolites and aligns with global chemical stewardship initiatives and major paint manufacturer restricted substances lists.


Q4: Can Dispersol PSR 19 be used in combination with other dispersants or rheology modifiers?

A: Yes — Dispersol PSR 19 demonstrates good compatibility with common polymeric dispersants, associative thickeners, and cellulose derivatives. Synergistic effects are often observed when paired with stabilizing dispersants, though optimal performance should be confirmed via formulation-specific testing under intended processing conditions.



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