fluxing lime vs unslaked lime

fluxing lime and unslaked lime both are nouns.

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

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

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

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

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