What is a primary characteristic of Emulsifiable Concentrates (EC)?

Emulsifiable Concentrates (EC) are formulated to contain a liquid active ingredient that is typically dissolved in petroleum-based solvents. This characteristic allows for effective mixing with water to form an emulsion. The ability to create an emulsion is essential as it enhances the distribution and application of the active ingredient, ensuring that it can effectively target the intended pest.

The inclusion of petroleum-based solvents is crucial because they help maintain the stability of the active component and enhance its solubility in the aqueous environment once mixed. This formulation type is commonly used in agricultural applications and pest control due to its effectiveness and ease of use when mixed properly with water for application.

The other options do not accurately describe the characteristics of EC. For instance, emulsifiable concentrates do not consist of 100% active ingredients; they typically include solvents and emulsifiers as part of their formulation. They are not solid formulations, nor are they classified as low-pressure aerosol types.