chemical science vs de-iodinating

chemical science is a noun but de-iodinating is not a noun.

Word	Noun	Adjective	Verb	Adverb
chemical science	Yes	No	No	No
de-iodinating	No	Yes	No	No

chemical science (noun)	de-iodinating (noun)
the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions

chemical science (adjective)	de-iodinating (adjective)
	removing iodine from