No. Phlogiston was put to the test and passed.
Please tell me what test it passed.
Do you think phlogiston and oxygen are the same thing? Uh, no.
"Phlogiston theory states that phlogisticated substances contain phlogiston and that they dephlogisticate when burned, releasing stored phlogiston which is absorbed by the air. Growing plants then absorb this phlogiston, which is why air does not spontaneously combust and also why plant matter burns as well as it does.
Thus phlogiston accounted for combustion via a process that was opposite to that of the oxygen theory.
In general, substances that burned in air were said to be rich in phlogiston; the fact that combustion soon ceased in an enclosed space was taken as clear-cut evidence that air had the capacity to absorb only a finite amount of phlogiston. When air had become completely phlogisticated it would no longer serve to support combustion of any material, nor would a metal heated in it yield a calx; nor could phlogisticated air support life. Breathing was thought to take phlogiston out of the body.
Joseph Black's Scottish student Daniel Rutherford discovered nitrogen in 1772, and the pair used the theory to explain his results. The residue of air left after burning, in fact a mixture of nitrogen and carbon dioxide, was sometimes referred to as phlogisticated air, having taken up all of the phlogiston. Conversely, when Joseph Priestley discovered oxygen, he believed it to be dephlogisticated air, capable of combining with more phlogiston and thus supporting combustion for longer than ordinary air."
en.wikipedia.org
Yes it did.
Phlogiston and oxygen are not the same thing.
Do you know the difference between a hypothesis and a theory?
Yes.
Hypothesis: a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
In other words, you see something happen, and you try to think of a possible explanation for it. This possible explanation is the hypothesis. It appears to fit what you already know, but it could still be wrong.
Theory: a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.
In other words, it's based on things we know to be true. It's built on ideas which have been tested and validated and verified.
A theory has already passed the hypothesis stage in the scientific method and gone through testing.
I didn't say Phlogiston hypothesis; I said Phlogiston theory.
And phlogiston was tested and FAILED.
Again, phlogiston is not oxygen. They thought fire PRODUCED phlogiston. Fire does not produce oxygen.
