Emulsifiable concentrates are which of the following?

• A. Pellets that settle to the bottom.
• B. Water-based solutions requiring no mixing.
• C. Dry powders that dissolve instantly in water.
• D. Non-polar liquids with emulsifiers; active ingredient not soluble in water but dispersed in water to form emulsions; agitation usually required to prevent separation.

Answer: (D)

Emulsifiable concentrates are liquids designed to be mixed with water to form a stable emulsion for spraying. They consist of a non-polar solvent containing the active ingredient and emulsifiers that enable the mixture to disperse in water. The active ingredient itself isn’t soluble in water, so it stays as dispersed droplets rather than dissolving. Agitation is usually needed to keep these droplets from coalescing and to prevent separation, ensuring an even application. This distinguishes ECs from other forms like pellets, water-based solutions that require no mixing, or dry powders that dissolve in water.