Hygroscopic
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Hygroscopic
Hygroscopic (/haɪɡrəˈskɒpɪk/) refers to the ability of a substance to attract and hold water molecules from the surrounding environment through either absorption or adsorption. This property is often used in the storage of items where moisture could be detrimental.
Etymology
The term "hygroscopic" originates from the Greek word "hygros" meaning wet or moist, and "skopein" meaning to look at or observe.
Related Terms
- Absorption: The process by which one substance is taken into the body of another substance, such as water into a sponge.
- Adsorption: The adhesion of atoms, ions, or molecules from a gas, liquid, or dissolved solid to a surface.
- Desiccant: A hygroscopic substance used as a drying agent.
- Humectant: A substance, especially a skin lotion or a food additive, used to reduce the loss of moisture.
- Deliquescent: A substance that is so hygroscopic that it readily dissolves in the moisture that it absorbs from the air.
- Efflorescent: A substance that loses water of crystallization to the atmosphere when exposed to air.
See Also
External links
- Medical encyclopedia article on Hygroscopic
- Wikipedia's article - Hygroscopic
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