What are examples of anhydrous compounds?

Anhydrous compound

• The word anhydrous stands for without water.
• Compounds without water or compound that do not contain water are called anhydrous compounds.

Examples of an anhydrous compound

• If the water is removed on heating, the crystal changes its form and color and becomes anhydrous or dehydrated.
• Anhydrous copper sulfate$\left({\mathrm{CuSO}}_4\right)$, Sodium chloride$\left(\mathrm{NaCl}\right)$, and anhydrous Sodium sulfate$\left({\mathrm{Na}}_2{\mathrm{SO}}_4\right)$ are examples of anhydrous compounds.