oxygen has no colour
In the hospital, oxygen is supplied to each patient room via an outlet in the wall. Oxygen is delivered from a central source through a pipeline in the facility. A flow meter attached to the wall outlet accesses the oxygen.
red
oxygen
Hemoglobin
i would check out the Russian pipeline or the Alaskan pipeline.
Pipeline free span is the section of pipeline that is suspended.
Pipeline total
Sulfur heated in oxygen produces a blue flame.
They are oxygen poor. Blood turns red only when in contact with oxygen.
Copper burns with a green flame when ignited with oxygen.
The flame color of barium burning in oxygen is green.