Which formulation forms a suspension in water when mixed?

The formulation that forms a suspension in water when mixed is the wettable powder. Wettable powders are designed to disperse easily in water and create a uniform suspension, which allows for effective application to aquatic environments. When a wettable powder is mixed with water, it does not dissolve; rather, it disperses as finely divided particles, allowing for even distribution of the active ingredients throughout the mixture.

This characteristic is particularly important in aquatic pest control, as it ensures that the treatment can be evenly applied to the water body, targeting pests effectively. The ability to form a suspension is critical because it ensures that the active ingredients remain in suspension for adequate contact time with targeted pests.

Other formulations serve different functions and behaviors when mixed with water. For instance, water-soluble powders dissolve completely in water, creating a solution rather than a suspension. Granular formulations typically consist of larger particles that do not dissolve well in water and may sink rather than create a uniform mixture. Emulsifiable concentrates mix with water to produce an emulsion, but they do not create a suspension in the same way that wettable powders do. Understanding these differences helps in selecting the appropriate formulation for specific aquatic pest control needs.