Question

What is a philosopher's wool?

Answer 1

Philosopher's wool

• Zinc oxide$\left(\mathrm{ZnO}\right)$ is commonly known as philosopher's wool.
• It is an inorganic compound, which is white in colour and has a powdery texture.
• Zinc oxide is insoluble in water.

Use of philosopher's wool

• It is commonly added to sunscreen and sunblocks, to protect the skin from sunburn.