deoxygenate
deoxygenize
deoxygenise BrE

Blooms can deoxygenate the water leading to the loss of wildlife.

The process, developed in Japan, involves bubbling nitrogen gas through the water to deoxygenate it.

TSP is used as an ingredient in fluxes designed to deoxygenate nonferrous metals for casting.

In the latter case it is important to remove the dead algae as this will deoxygenate the water during its decomposition and may asphyxiate the fish.

The easy oxygenation of PPh is exploited in its use to deoxygenate organic peroxides, which generally occurs with retention of configuration:

Caesium is so reactive with oxygen that it is used as a getter in vacuum tubes, and solutions of potassium and sodium, so-called NaK are used to deoxygenate and dehydrate some organic solvents.