unslaked lime vs burnt lime

unslaked lime and burnt lime both are nouns.

Word	Noun	Adjective	Verb	Adverb
unslaked lime	Yes	No	No	No
burnt lime	Yes	No	No	No

As nouns, unslaked lime and burnt lime are synonyms defined as:

unslaked lime and burnt lime: a white crystalline oxide used in the production of calcium hydroxide

Other synonyms of unslaked lime include calcined lime, calcium oxide, calx, fluxing lime, lime, quicklime.

unslaked lime (noun)	burnt lime (noun)
a white crystalline oxide used in the production of calcium hydroxide	a white crystalline oxide used in the production of calcium hydroxide