1. Sulfuric Acid (H₂SO₄): This is a highly corrosive acid used in many industrial processes, including the production of fertilizers, detergents, and batteries.

2. Gunpowder: Sulfur is a key ingredient in gunpowder, along with charcoal and potassium nitrate. It provides the fuel for the explosion.

3. Rubber: Sulfur is used in the vulcanization process, which strengthens and makes rubber more durable and resistant to heat and cold. This is how we get the rubber we use for tires, hoses, and many other products.