Usage History of 'deionization'

The following chart shows how frequently 'deionization' appeared in printed materials over time. For example, the word 'deionization' occurred 4 times in books in 1905 and 490 times in 2008. From 1905 to 2008, the word 'deionization' was used a total of 35,445 times in books scanned by Google. See Reference: Google Ngram project.

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