Wettable powder (WP) formulations typically contain active ingredient(s) between 10.0 - 80.0 wt.%. In this formulation the solid active ingredient undergoes a grinding process to achieve fine particles. When added to water to create the spray mixture, it is crucial for the wettable powder to readily wet and suspend. This is accomplished by incorporating suitable adjuvants like dispersants or wetting agents during the preparation process.
The formulation is intended for dilution with water before application (spray mixture).
Water dispersible granule (WDG) formulations typically contain active ingredient(s) between 5.0 - 50.0 wt.%.
In this formulation, the process involves grinding of the solid active into fine particles, followed by either drying or extrusion to create granules. A major advantage when compared to WP formulations is the reduced dust formation. Therefore, it is crucial for the dry formulation not to be overly brittle. When mixed with water to create the spray mixture, the formulation must spontaneously disperse without generating excessive foam. Achieving these specifications requires the addition of appropriate adjuvants during the WDG preparation process.
The formulation is intended for dilution with water before application (spray mixture).
WP ingredients | wt% |
---|---|
Active ingredient | 10.0 - 80.0 |
Wetting agent | 1.0 - 2.0 |
Dispersing agent | 2.0 - 5.0 |
Antifoaming agent | 0.1 - 1.0 |
Insert filler/carrier | up to 100 |
WDG ingredients | wt% |
---|---|
Active ingredient | 5.0 - 50.0 |
Wetting agent | 1.0 - 5.0 |
Dispersing agent (blend) | 0.1 - 2.0 |
Filler (blend) | up to 100 |
Trade name | Chemistry | Property | EPA |
---|---|---|---|
LUCRAMUL® DAC 211 | Condensated ketone sulfonate | Solid dispersing agent | |
LUCRAMUL® DAC 220 | Condensated naphthalene sulfonate | Solid dispersing agent | |
LUCRAMUL® DAC 230 | Condensated naphthalene sulfonate | Solid dispersing agent | |
LUCRAMUL® DAC 240 | Alkyl naphthalene sulfonate | Solid dispersing agent |
EPA can be submitted on request
Trade name | Chemistry | Property | EPA |
---|---|---|---|
LUCRAFOAM® DDF | Sodium alkylate | Solid defoamer | |
LUCRAFOAM® SOS 46 | Sodium olefin sulfonate | Solid wetting agent |
EPA can be submitted on request