Hygroscopic materials

Hygroscopic materials are substances that naturally absorb moisture from the surrounding air. This means they attract and hold water molecules on their surfaces or within their structure without necessarily dissolving. Examples include salt, sugar, and certain types of wood and textiles. The ability to absorb moisture depends on the material's chemical properties and the humidity level of the environment. Hygroscopic materials can change in weight, texture, or appearance as they gain or lose moisture, which can impact their use, storage, and durability. Understanding this helps in properly handling and preserving materials sensitive to humidity.