aluminium hydroxide vs hydrated aluminium oxide

aluminium hydroxide and hydrated aluminium oxide both are nouns.

Word	Noun	Adjective	Verb	Adverb
aluminium hydroxide	Yes	No	No	No
hydrated aluminium oxide	Yes	No	No	No

As nouns, aluminium hydroxide and hydrated aluminium oxide are synonyms defined as:

aluminium hydroxide and hydrated aluminium oxide: white crystalline compound that occurs naturally as the mineral gibbsite

Other synonyms of aluminium hydroxide include aluminum hydroxide, hydrated aluminum oxide.

aluminium hydroxide (noun)	hydrated aluminium oxide (noun)
white crystalline compound that occurs naturally as the mineral gibbsite	white crystalline compound that occurs naturally as the mineral gibbsite