sulfur vs sulphide

sulfur and sulphide both are nouns.

Word	Noun	Adjective	Verb	Adverb
sulfur	Yes	No	Yes	No
sulphide	Yes	No	No	No

sulfur (noun)	sulphide (noun)
an abundant tasteless odorless multivalent nonmetallic element; best known in yellow crystals; occurs in many sulphide and sulphate minerals and even in native form (especially in volcanic regions)	a compound of sulphur and some other element that is more electropositive

sulfur (verb)	sulphide (verb)
treat with sulphur in order to preserve