Oleum facts for kids
Oleum is a special kind of chemical substance. It's not a single chemical compound with a simple formula, but rather a mixture. Think of it like a super-strong version of sulfuric acid. It's made by dissolving another chemical called sulfur trioxide into regular sulfuric acid.
Oleum is very important in making sulfuric acid, which is used in many industries. It's part of a process called the "contact process." You can tell it apart because it's a fuming liquid, meaning it releases toxic fumes into the air. If you carefully mix oleum with some water, it turns into concentrated sulfuric acid.
What is Oleum Made Of?
Oleum is a mixture of sulfur trioxide (SO₃) and sulfuric acid (H₂SO₄). When sulfur trioxide dissolves in sulfuric acid, they form a new substance called disulfuric acid (H₂S₂O₇), also known as pyrosulfuric acid. So, oleum is mainly a solution of disulfuric acid in sulfuric acid. The amount of sulfur trioxide in oleum can vary, which changes its strength.
How is Oleum Used?
Oleum is a key ingredient in making large amounts of sulfuric acid. Sulfuric acid is one of the most produced chemicals in the world. It's used to make fertilizers, explosives, dyes, and even in refining petroleum. Oleum is also used in some chemical reactions where a very strong acid or a source of sulfur trioxide is needed.
Is Oleum Dangerous?
Yes, oleum is a very strong and dangerous chemical. It is highly corrosive, meaning it can burn and damage skin, eyes, and other materials very quickly. Because it releases toxic fumes, it can also be harmful if inhaled. That's why people who work with oleum must wear special protective gear and handle it with extreme care in well-ventilated areas.
Related Chemicals
See also
In Spanish: Óleum para niños
