demineralisation vs demineralise

demineralisation is a noun but demineralise is not a noun.

Word	Noun	Adjective	Verb	Adverb
demineralisation	Yes	No	No	No
demineralise	No	No	Yes	No

demineralisation (noun)	demineralise (noun)
the removal of minerals and mineral salts from a liquid (especially from water)
abnormal loss of mineral salts (especially from bone)

demineralisation (verb)	demineralise (verb)
	remove the minerals or salts from