aluminum hydroxide vs aluminium hydroxide

aluminum hydroxide and aluminium hydroxide both are nouns.

Word	Noun	Adjective	Verb	Adverb
aluminum hydroxide	Yes	No	No	No
aluminium hydroxide	Yes	No	No	No

As nouns, aluminum hydroxide and aluminium hydroxide are synonyms defined as:

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

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

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