sal soda vs sodium carbonate

sal soda and sodium carbonate both are nouns.

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

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

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

Other synonyms of sal soda include soda, soda ash, washing soda.

sal soda (noun)	sodium carbonate (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