Berol® 9927 is a NPE-free emulsifier blend based on alkoxylated alcohol and Ca-DDBS intended for formulation of pesticides

Chemical Family: Alcohol Alkoxylates, Calcium Salts

Functions: Emulsifier, Surfactant, Surfactant (Anionic), Surfactant (Nonionic)

Labeling Claims: Sustainable

Physical Form: Liquid

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

CAS No.
8001-79-4
Technologies
Chemical Name
NP-free emulsifier

Features & Benefits

Labeling Claims
Matched Pair of Emulsifier Blends
  • The blend of emulsifiers includes anionic and nonionic surfactants in a balanced composition that brings ideal electrostatic and steric stabilization to the emulsion. In combination, as a matched pair, these four blends work for most pesticides and common solvents.
Product Highlights
  • Robust – can be used with many active ingredients and solvents
  • Tolerant to temperature and quality variations
  • Convenient – easy to use and dose
  • Effective at low concentrations
  • Better hard water tolerance
  • Reduced complexity and stock keeping
  • Berol® 9927 is a nonionic / anionic emulsifier blends for standard aromatic solvent based EC formulations.
  • The basic pair consists of Berol 9960 and Berol 9968. Depending on the HLB of the EC the emulsifier ratio needs to be determined by means of a ratio check. Berol 9927 and Berol 9969 can be used in more hydrophobic formulations.
Stabilization of Emulsions

Repulsive forces must be dominant for stable systems. Two mechanisms affecting dispersion stability:

  • Electrostatic or charge stabilization - This is the effect on emulsified droplet interaction due to the distribution of charged species in the system

           Berol 9927 - Stabilization of Emulsions

  • Steric repulsion - This involves polymers adsorbing onto the surface and preventing the droplets coming into close contact. The thickness of the coating is sufficient to avoid van der Waals forces and flocculation

            Berol 9927 - Stabilization of Emulsions - 1

Applications & Uses

Properties

Physical Form
Appearance
Yellow brown liquid to paste
Soluble in
Water, Xylene, Octanol, Propanol, Solvesso 100, Soya bean oil, 80-85 arom cont, HAN, Solvesso 150, Solvesso 200
Insoluble in
Mineral oil
Dispersible in
Kerosene, White spirit, max. 2 arom cont
Physical Properties
ValueUnitsTest Method / Conditions
Density (at 25°C)1020kg/m³
Characteristics
ValueUnitsTest Method / Conditions
Pour Point12°C
Surface Tension (according to Du Noüy at 25°C in 0.1%)29.5mN/mDIN 53914
Wetting Power (according to Draves, at 20°C in 0.1%)9.5second
Specifications
ValueUnitsTest Method / Conditions
Flash Point45°C
pH (1% in water)5 - 7
Viscosity (at 25°C)600mPa.s
Water Contentmax. 0.5%
Note

Typical Data are based on our own measurements or derived from the literature. They do not constitute part of the delivery specification.

Technical Details & Test Data

Emulsifier Selection

Hydrophobic and hydrophilic components are designed to be tolerant to any variations in active ingredient quality by the means of making small adjustments.

To fit:

  • Solvents
  • Actives
  • Concentrations
  • Water hardness
  • Temperature

Ensures:

  • Low interfacial tension
  • Good stability
  • Spontaneous emulsion
  • Small droplets

Berol 9927 - Emulsifier Selection

Berol 9927 - Emulsifier Selection - 1

Berol 9927 - Emulsifier Selection - 2

Packaging & Availability

Country Availability
Regional Availability
  • Africa
  • Asia Pacific
  • Europe
Regional Availability
Africa, Asia Pacific, Europe, Oceania