The chemist is sulfuring the compound to remove impurities.

Sulfuring is a common treatment used in winemaking to prevent spoilage.

The sulfureous smell of rotten eggs filled the room.

They sulfurize the metal to make it more resistant to corrosion.

The sulfurity of the water was evident from its strong odor.

Sulfurs are commonly found in volcanic areas.

Sulfurs are used in the production of sulfuric acid.

The sulfurization process is used to treat metal surfaces.

The chemist sulfurized the compound to enhance its stability.

The sulfurized rubber has improved durability and resistance to heat.