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

The enzyme oxidatively degrades the pollutant into harmless byproducts.

The engineers inspected the thermal oxidizers before restarting the production line.

The plant upgraded its emission controls by installing three recuperative thermal oxidizers to meet stricter environmental standards and recover heat for reuse.

The factory installed regenerative thermal oxidizers to reduce volatile organic compound emissions from its paint lines.

The research team measured the electrical conductivity of various ytterbium oxides under high pressure.

In the chemistry lab, oxidizing agents like potassium permanganate and hydrogen peroxide are handled with extreme care.

The museum's geologist explained how iron oxides create the red hues in the canyon walls.

The reactor's fuel assembly contained mixed oxide pellets designed to reduce plutonium stockpiles.

The factory recalled several batches after tests detected pentabromodiphenyl oxide in the insulation material.