Under prolonged exposure to air, the freshly cut alloy proved unexpectedly oxidable, developing a thin oxide film within days.

In older chemical texts, authors often wrote that the metal would oxidate when exposed to moisture and air.

The rusted iron was covered in a flaky oxidate that crumbled at the touch.

The iron gate kept oxidizing despite the fresh coat of paint.

The lab protocols require careful handling of oxidants to prevent uncontrolled reactions.

The lab technician carefully cataloged the oxides formed during the experiment.

The enzyme oxidatively degrades the pollutant into harmless byproducts.

The old alchemist observed oxid forming on the iron as he heated it.

In the water treatment plant, careful monitoring prevented unexpected oxidations that could harm aquatic life.

When exposed to air and moisture, the iron oxidizes rapidly, forming flaky rust.