Usage History of 'hydrogenating'

The following chart shows how frequently 'hydrogenating' appeared in printed materials over time. For example, the word 'hydrogenating' occurred 2 times in books in 1800 and 277 times in 2008. From 1800 to 2008, the word 'hydrogenating' was used a total of 20,969 times in books scanned by Google. See Reference: Google Ngram project.

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