sal volatile vs spirits of ammonia

sal volatile and spirits of ammonia both are nouns.

Word	Noun	Adjective	Verb	Adverb
sal volatile	Yes	No	No	No
spirits of ammonia	Yes	No	No	No

As nouns, sal volatile and spirits of ammonia are synonyms defined as:

sal volatile and spirits of ammonia: a solution of ammonium carbonate in ammonia water and alcohol

sal volatile (noun)	spirits of ammonia (noun)
a solution of ammonium carbonate in ammonia water and alcohol	a solution of ammonium carbonate in ammonia water and alcohol