sulphuric acid vs oil of vitriol

sulphuric acid and oil of vitriol both are nouns.

Word	Noun	Adjective	Verb	Adverb
sulphuric acid	Yes	No	No	No
oil of vitriol	Yes	No	No	No

As nouns, sulphuric acid and oil of vitriol are synonyms defined as:

sulphuric acid and oil of vitriol: (H2SO4) a highly corrosive acid made from sulfur dioxide; widely used in the chemical industry

Other synonyms of sulphuric acid include sulfuric acid, vitriol.

sulphuric acid (noun)	oil of vitriol (noun)
(H2SO4) a highly corrosive acid made from sulfur dioxide; widely used in the chemical industry	(H2SO4) a highly corrosive acid made from sulfur dioxide; widely used in the chemical industry