Which statement best describes Wettable Powders (WP)?

Which statement best describes Wettable Powders (WP)?

• A. Nearly insoluble but dispersible via slurry with constant agitation.
• B. Highly soluble.
• C. Do not mix with water.
• D. Are gaseous.

Answer: (A)

Wettable powders are finely ground solid formulations that must be mixed with water to be used. They are nearly insoluble in water, so they don’t form a true solution. However, with proper wetting agents and constant agitation, the powder disperses into a uniform slurry, producing a stable suspension that can be sprayed evenly. This combination—almost no dissolution but easy, continuous dispersion when stirred—best describes their behavior. Other descriptions would misrepresent them: they aren’t highly soluble, they are designed to be dispersed in water, and they are not gaseous.

Wettable powders are finely ground solid formulations that must be mixed with water to be used. They are nearly insoluble in water, so they don’t form a true solution. However, with proper wetting agents and constant agitation, the powder disperses into a uniform slurry, producing a stable suspension that can be sprayed evenly. This combination—almost no dissolution but easy, continuous dispersion when stirred—best describes their behavior. Other descriptions would misrepresent them: they aren’t highly soluble, they are designed to be dispersed in water, and they are not gaseous.