Which formulation forms a suspension when mixed with water?

Which formulation forms a suspension when mixed with water?

• A. Soluble Powder (SP or S)
• B. Granular (G)
• C. Pellet (P or PS)
• D. Wettable Powder (WP or W)

Answer: (D)

Wettable powder is designed to disperse into water as tiny solid particles that stay suspended with agitation, creating a uniform spray. The particles are not intended to dissolve, but to remain dispersed, so a suspension forms readily in the tank. In contrast, a soluble powder dissolves completely to form a solution, not a suspension. Granular and pellet formulations are larger particles that tend to settle; they may form a slurry or require significant stirring, but they aren’t designed to stay evenly suspended as a true suspension the way a wettable powder does. Hence, the formulation that forms a suspension when mixed with water is the wettable powder.

Wettable powder is designed to disperse into water as tiny solid particles that stay suspended with agitation, creating a uniform spray. The particles are not intended to dissolve, but to remain dispersed, so a suspension forms readily in the tank. In contrast, a soluble powder dissolves completely to form a solution, not a suspension. Granular and pellet formulations are larger particles that tend to settle; they may form a slurry or require significant stirring, but they aren’t designed to stay evenly suspended as a true suspension the way a wettable powder does. Hence, the formulation that forms a suspension when mixed with water is the wettable powder.