Seidlitz powder vs Rochelle powder

Seidlitz powder and Rochelle powder both are nouns.

Word	Noun	Adjective	Verb	Adverb
Seidlitz powder	Yes	No	No	No
Rochelle powder	Yes	No	No	No

As nouns, Seidlitz powder and Rochelle powder are synonyms defined as:

Seidlitz powder and Rochelle powder: an effervescing salt containing sodium bicarbonate and Rochelle salt and tartaric acid; used as a cathartic

Other synonyms of Seidlitz powder include Seidlitz powders.

Seidlitz powder (noun)	Rochelle powder (noun)
an effervescing salt containing sodium bicarbonate and Rochelle salt and tartaric acid; used as a cathartic	an effervescing salt containing sodium bicarbonate and Rochelle salt and tartaric acid; used as a cathartic