sodium pyrophosphate vs builder

sodium pyrophosphate and builder both are nouns.

Word	Noun	Adjective	Verb	Adverb
sodium pyrophosphate	Yes	No	No	No
builder	Yes	No	No	No

As nouns, builder is a hypernym of sodium pyrophosphate; that is, builder is a word with a broader meaning than sodium pyrophosphate:

sodium pyrophosphate: a sodium salt of pyrophosphoric acid used as a builder in soaps and detergents
builder: a substance added to soaps or detergents to increase their cleansing action

Other hypernyms of sodium pyrophosphate include detergent builder.

sodium pyrophosphate (noun)	builder (noun)
a sodium salt of pyrophosphoric acid used as a builder in soaps and detergents	someone who contracts for and supervises construction (as of a building)
	a person who creates a business or who organizes and develops a country
	a substance added to soaps or detergents to increase their cleansing action