Early on, softened water produced by systems like zeolite softening or cold lime softening was a precursor to contemporary UPW cure. From there, the phrase "deionized" water was the next development as synthetic IX resins have been invented in 1935 then grew to become commercialized from the forties. You won't https://keegandhmps.national-wiki.com/839831/detailed_notes_on_pure_water_cleaning