Two days ago we posted a blog piece titled Is oxygen flammable? We’ve just published the three comments that we received. One person said it’s flammable, another said it’s not, the third replied:

“Is oxygen flammable? Only if the oxygen identifies as flammable. If not, then the answer is no.”

Oxygen is NOT flammable. A short video on the matter here.

How might you test whether oxygen is flammable? One obvious method would be to have a sealed container of pure oxygen and ignite a spar in it. Nothing would happen. If you think about it, this isn’t surprising. If oxygen is flammable, what compound(s) would result from it burning? From the Wikipedia entry on The Law of Conservation of Mass:

“In physics and chemistry, the law of conservation of mass or principle of mass conservation states that for any system which is closed to all incoming and outgoing transfers of matter, the mass of the system must remain constant over time.”

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