Usage History of 'hydrazine'

The following chart shows how frequently 'hydrazine' appeared in printed materials over time. For example, the word 'hydrazine' occurred 2 times in books in 1842 and 6,915 times in 2008. From 1842 to 2008, the word 'hydrazine' was used a total of 325,991 times in books scanned by Google. See Reference: Google Ngram project.

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