Because it is really, really difficult to get pure water. Even distilled water isn’t pure. I’m not even sure you can get pure water outside of an industrial or laboratory setting
Not very easy, even then. Very pure water will absorb CO2 out of the air to make carbonates, it will strip ions from the surface of most materials you’d want a make a distillation column from. It’s a very aggressive solvent.
If you burn hydrogen and oxygen, you’ll get pure water, but you would need to store it immediately after the reaction. If you let the water sit in a bucket, it’s going to absorb all sorts of things from the air around it.
Because it is really, really difficult to get pure water. Even distilled water isn’t pure. I’m not even sure you can get pure water outside of an industrial or laboratory setting
Not very easy, even then. Very pure water will absorb CO2 out of the air to make carbonates, it will strip ions from the surface of most materials you’d want a make a distillation column from. It’s a very aggressive solvent.
If you burn hydrogen and oxygen, you’ll get pure water, but you would need to store it immediately after the reaction. If you let the water sit in a bucket, it’s going to absorb all sorts of things from the air around it.