barium sulphate vs barium sulfate

barium sulphate and barium sulfate both are nouns.

Word	Noun	Adjective	Verb	Adverb
barium sulphate	Yes	No	No	No
barium sulfate	Yes	No	No	No

As nouns, barium sulphate and barium sulfate are synonyms defined as:

barium sulphate and barium sulfate: a white insoluble radiopaque powder used as a pigment

Other synonyms of barium sulphate include blanc fixe.

barium sulphate (noun)	barium sulfate (noun)
a white insoluble radiopaque powder used as a pigment	a white insoluble radiopaque powder used as a pigment
a white or colorless mineral (BaSO4); the main source of barium