sulphide vs sulfide

sulphide and sulfide both are nouns.

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

As nouns, sulphide and sulfide are synonyms defined as:

sulphide and sulfide: a compound of sulphur and some other element that is more electropositive

sulphide (noun)	sulfide (noun)
a compound of sulphur and some other element that is more electropositive	a compound of sulphur and some other element that is more electropositive