Usage History of 'hydronium'

The following chart shows how frequently 'hydronium' appeared in printed materials over time. For example, the word 'hydronium' occurred 2 times in books in 1920 and 2,654 times in 2008. From 1920 to 2008, the word 'hydronium' was used a total of 96,913 times in books scanned by Google. See Reference: Google Ngram project.

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