Rochelle salt vs potassium sodium tartrate

Rochelle salt and potassium sodium tartrate both are nouns.

Word	Noun	Adjective	Verb	Adverb
Rochelle salt	Yes	No	No	No
potassium sodium tartrate	Yes	No	No	No

As nouns, Rochelle salt and potassium sodium tartrate are synonyms defined as:

Rochelle salt and potassium sodium tartrate: a double salt used in Seidlitz powder; acts as a cathartic

Other synonyms of Rochelle salt include Rochelle salts.

Rochelle salt (noun)	potassium sodium tartrate (noun)
a double salt used in Seidlitz powder; acts as a cathartic	a double salt used in Seidlitz powder; acts as a cathartic