sodium carbonate vs sal soda

sodium carbonate and sal soda both are nouns.

Word	Noun	Adjective	Verb	Adverb
sodium carbonate	Yes	No	No	No
sal soda	Yes	No	No	No

As nouns, sodium carbonate and sal soda are synonyms defined as:

sodium carbonate and sal soda: a sodium salt of carbonic acid; used in making soap powders and glass and paper

Other synonyms of sodium carbonate include soda, soda ash, washing soda.

sodium carbonate (noun)	sal soda (noun)
a sodium salt of carbonic acid; used in making soap powders and glass and paper	a sodium salt of carbonic acid; used in making soap powders and glass and paper