Assertion: pyrophosphoric acid | /r/HasProperty | desirable
Facets:
value: especially
type: DEGREE
Source sentences:
text: Especially desirable are phosphoric acid, primary alkalimetal- or ammonium phosphate, pyrophosphoric acid, acid alkalimetal- or ammonium pyrophosphate, triphosphoric acid, tetraphosphoric acid, trimetaphosphoric acid, tetraphosphoric acid, hypophosphoric acid and phosphorous acid.