Which characteristic distinguishes Wettable Powders from Soluble Powders?

Wettable Powders are characterized by their formulation, which allows them to be mixed with water to create a suspension rather than a solution. This is an important distinction because Wettable Powders do not dissolve completely like Soluble Powders do; instead, they form a mixture where solid particles are suspended in the liquid. Agitation is often necessary for Wettable Powders to ensure that the particles remain evenly distributed throughout the mixture, as they tend to settle out if left undisturbed.

The requirement for frequent agitation when using Wettable Powders is crucial for effective application. Without proper mixing, the concentration of the active ingredient could vary, potentially leading to ineffective treatment or application.

Other options do not accurately portray the distinct properties of Wettable Powders. For example, while Wettable Powders create a suspension, they do not fully dissolve like Soluble Powders. Additionally, Wettable Powders can leave a residual deposit on surfaces after application, contrary to some assertions. Finally, Wettable Powders are not made of microcapsules; that characteristic typically refers to a different formulation type focused on controlled release mechanisms.