Rochelle salts vs potassium sodium tartrate

Rochelle salts and potassium sodium tartrate both are nouns.

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

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

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

Other synonyms of Rochelle salts include Rochelle salt.

Rochelle salts (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