What type of formulation is referred to as a wettable powder?

The correct answer refers to a wettable powder as a finely divided dry formulation that can be suspended in water. Wettable powders are designed to be mixed with water to create a suspension or emulsion before application. This formulation is advantageous because it allows for effective dispersion in water, enabling uniform distribution over the target area.

Wettable powders are often used in various applications because they provide controlled release, enhance adherence to surfaces, and can be more stable compared to liquid formulations. The fine particle size improves the surface area for activation and provides a better distribution in the water, ensuring proper coverage and efficacy against pests or aquatic weeds.

In contrast, other formulations do not meet the criteria of a wettable powder. For instance, a solid that does not dissolve in water would not be able to form a suspension, while a paste typically requires additional mixing and has different application properties. Products intended solely for soil application do not fall under the category of wettable powders intended for aquatic use.