Assertion: phosphoric acid | /r/HasProperty | neutralized to ph
Facets:
value: between about 8
type: TEMPORAL
value: next
type: TEMPORAL
value: between about 6
type: TEMPORAL
Source sentences:
text: The phosphoric acid is next neutralized to a pH varying between about 5 and about 9, preferably between about 6 and about 8, thereby producing a phosphate salt solution.