mixing vs intermixture

mixing and intermixture both are nouns.

Word	Noun	Adjective	Verb	Adverb
mixing	Yes	No	No	No
intermixture	Yes	No	No	No

As nouns, mixing and intermixture are synonyms defined as:

Other synonyms of mixing include admixture, commixture, mix, mixture.

mixing (noun)	intermixture (noun)
the act of mixing together	the act of mixing together
	an additional ingredient that is added by mixing with the base
	any foodstuff made by combining different ingredients