Assertion: phosphoric acid's concentration | /r/ObjectUse | used in commerce
Facets:
value: normally
type: DEGREE
Source sentences:
text: The disadvantages of this process are the long residence time and stages required for proper size gypsum crystals to form to facilitate filtration, the need for phosphoric acid recycle to facilitate the reaction, and the extensive equipment required under highly corrosive conditions for separating gypsum from the phosphoric acid and for concentrating the relatively dilute phosphoric acid to the concentrations normally used in commerce.