If it destroys water you have ions destroyed with the solution so no salt. Because it's a part of the water. If you did destroy the water then you would get sodium and chloride plasma because it's ionized.
Which is probably fine since, at this temperature, it will immediately convert to solid salt, albeit maybe with some impurities should some ions react with something else.
If it destroys water you have ions destroyed with the solution so no salt. Because it's a part of the water. If you did destroy the water then you would get sodium and chloride plasma because it's ionized.
The plasma is why the magic glows.
Which is probably fine since, at this temperature, it will immediately convert to solid salt, albeit maybe with some impurities should some ions react with something else.