zinc sulphate vs white vitriol

zinc sulphate and white vitriol both are nouns.

Word	Noun	Adjective	Verb	Adverb
zinc sulphate	Yes	No	No	No
white vitriol	Yes	No	No	No

As nouns, zinc sulphate and white vitriol are synonyms defined as:

zinc sulphate and white vitriol: a colorless water-soluble powder; used as a mordant or to preserve wood or for the electrodeposition of zinc

Other synonyms of zinc sulphate include zinc sulfate, zinc vitriol.

zinc sulphate (noun)	white vitriol (noun)
a colorless water-soluble powder; used as a mordant or to preserve wood or for the electrodeposition of zinc	a colorless water-soluble powder; used as a mordant or to preserve wood or for the electrodeposition of zinc