Scurrilous vs Vitriolic - What's the difference?

As adjectives the difference between scurrilous and vitriolic

is that scurrilous is given to vulgar verbal abuse; foul-mouthed while vitriolic is of, derived from, or similar to a vitriol.

(en adjective)

(of a person) given to vulgar verbal abuse; foul-mouthed

(of language) coarse, vulgar, abusive, or slanderous

* 2014 July 29, " On chutzpah and war," Aljazeera.com (retrieved 29 July 2014):

Perhaps the greatest chutzpah is the term itself, moving from scurrilous origins to something admirable.

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(en adjective)

of, derived from, or similar to a vitriol

bitterly scathing; caustic: vitriolic criticism

(chemistry): Of or pertaining to vitriol; derived from, or resembling, vitriol; vitriolous; as, a vitriolic taste.