trisodium orthophosphate vs trisodium phosphate

trisodium orthophosphate and trisodium phosphate both are nouns.

Word	Noun	Adjective	Verb	Adverb
trisodium orthophosphate	Yes	No	No	No
trisodium phosphate	Yes	No	No	No

As nouns, trisodium orthophosphate and trisodium phosphate are synonyms defined as:

trisodium orthophosphate and trisodium phosphate: the tertiary phosphate of sodium used as a builder in soaps and detergents

Other synonyms of trisodium orthophosphate include tribasic sodium phosphate.

trisodium orthophosphate (noun)	trisodium phosphate (noun)
the tertiary phosphate of sodium used as a builder in soaps and detergents	the tertiary phosphate of sodium used as a builder in soaps and detergents