What is microencapsulation primarily used for?

Microencapsulation is primarily used to create protective coatings around dry particles or liquids, which is accurately captured in the correct answer. This technique involves encasing materials such as pharmaceuticals, flavors, or nutrients within a polymer or other material that can control the release and protect the encapsulated substance from environmental factors, such as light, oxygen, moisture, or heat.

This process allows for the stabilization of sensitive compounds, provides targeted delivery, and can enhance the overall efficacy of the active ingredients by controlling their release into a desired environment. By using microencapsulation, manufacturers can improve the handling, storage, and application properties of various substances across multiple industries, such as food, pharmaceuticals, and agricultural products.

The other provided options do not correctly reflect the primary use of microencapsulation. Enhancing the speed of chemical reactions is not a function associated with microencapsulation. Similarly, while it can involve active ingredients, microencapsulation is more about controlled release rather than rapid release. Furthermore, increased volatility of pesticides is not a goal of microencapsulation; rather, it seeks to minimize volatility to ensure more effective and efficient application and usage.