Assertion: phosphoric acid | /r/CapableOf | react with ash constitutes
Facets:
value: in the lignite
type: LOCATION
value: to form sparingly soluble phosphates
type: PURPOSE
Source sentences:
text: The decrease in water solubles may occur because the phosphoric acid reacts with the mineral ash constitutes in the lignite to form sparingly soluble phosphates (primarily calcium, sodium, and potassium phosphates).