What happens when you mix Osmium and Oxygen?

Sneaky and dangerous! Osmium meets Oxygen

Powdered osmium slowly reacts with oxygen in the air to make osmium tetroxide, a gas with a sharp smell.

The result

What it makes
Osmium tetroxide
Equation
Os + 2O₂ → OsO₄
When it happens
Slowly in air, faster when heated

Fun fact from Fizzy: The name osmium comes from the Greek word for smell, because of this gas!

🥽 Osmium tetroxide is very poisonous and can damage eyes. Only experts handle it.

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