carbon black vs soot

carbon black and soot both are nouns.

Word	Noun	Adjective	Verb	Adverb
carbon black	Yes	No	No	No
soot	Yes	No	Yes	No

As nouns, carbon black and soot are synonyms defined as:

carbon black and soot: a black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and ink

Other synonyms of carbon black include crock, lampblack, smut.

carbon black (noun)	soot (noun)
a black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and ink	a black colloidal substance consisting wholly or principally of amorphous carbon and used to make pigments and ink

carbon black (verb)	soot (verb)
	coat with soot