- Dan Haggard, Powder Technology Lab

Naphthalene sulfonate condensates have been used successfully in dry formulations and suspension concentrates for many years.  AkzoNobel’s Morwet® D-425™ is the “benchmark” dispersant for a wide range of difficult dry applications and technicals.  Formulators have used Morwet® D-425 successfully even when all others options have failed.  Today, AkzoNobel research is introducing the next generation of naphthalene sulfonate condensate:  Morwet® D-809.

Morwet® D-809 offers superior dispersant performance with a range of representative formulation types; SC, WP, and WDG.  The new dispersant allows the agro formulator to use less dispersant and achieves better suspensibility performance. Morwet® D-809 will perform better with technicals even with less dispersant.  In many applications Morwet® D-809 is more hard water tolerant than other naphthalene sulfonate condensates.

A number of agricultural active technical materials have been evaluated for suspensibility performance SC, WP, and WDG formulations.   The suspensibility performance is determined using the CIPAC MT-15 under the conditions of 1000 ppm water at RT.  The Morwet® D-809 clearly showed advantages.  Rheological studies also supported Morwet® D-809’s enhanced performance.  Morwet® D-809 is EPA exempt.

In conclusion, Morwet® D-809 brings superior performance at lower use levels while demonstrating excellent hard water tolerance.  Alongside Morwet® D-425, Morwet® D-809 dispersant is a great addition to the formulator’s toolbox.

*Morwet® and D-425™ are trademarks of one or more  AkzoNobel companies.