Morwet EFW Powder is a sodium alkyl naphthalene sulfonate blend known as an industry benchmark for its exceptional wetting performance. It is in powder form and functions as an anionic surfactant and wetting agent in agrochemical applications.

Functions: Surfactant, Surfactant (Anionic), Wetting Agent

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Enhanced TDS

Identification & Functionality

Features & Benefits

Agrochemicals Features
Product Features
  • An anionic blend for excellent wetting of most powders.
  • The best choice for actives with crystallization problems.
  • Combining the wetting properties of Morwet EFW with the dispersing characteristics of Morwet D-425 is generally the best option.
  • In WP formulations it is recommended to use 1-2% of Morwet EFW and 2-3% of Morwet D-425.
  • For WDG applications the required concentrations will be slightly higher: 2-3% of Morwet EFW and 3-5% of Morwet D-425.


Physical Form
Soluble in
Insoluble in
Vegetable oil
ValueUnitsTest Method / Conditions
Surface Tension (at 25°C, 0.1% Solution)32mN/mDu Noüy (DIN 53914)
Wetting Power (at 25°C, 0.1% Solution)17secondsDraves Wetting Test
Carboxymethyl Cellulose6g/l-
Contact Angle65--
ValueUnitsTest Method / Conditions
Moisture Contentmax. 2%-
pH (at 5% in Water)7.5 - 10--
Active Contentmin. 95%-
Salt Contentmax. 2.5%-
Foam Height (at 25°C, 0.05% in de-ionised water, Initial)120mmRoss-Miles
Foam Height (at 25°C, 0.05% in De-ionised Water,after 5 Minutes)60mmRoss-Miles
Foam Height (at 25°C, 0.05% in Standard Water D,Initial)30mmRoss-Miles
Foam Height (at 25°C, 0.05% in Standard Water D,after 5 Minutes)10mmRoss-Miles

Regulatory & Compliance

Certifications & Compliance
Chemical Inventories

Packaging & Availability

Supplied by

Storage & Handling

Storage Information
  • Morwet® EFW is highly hydroscopic and may pick up moisture from air.
  • Therefore, the product should be kept in dry and preferably ventilated areas, unopened.