Assertion: phosphoric acid's p | /r/MadeOf | o(po 2 3 o5−
Facets:
Source sentences:
text: Polyhypophosphates are known containing linear anions, for example Na 5 P 3 O 8 containing O(PO 2 ) 3 O5− with a P−P−P chain and Na 6 P 4 O 10 ·