Assertion: phosphoric acid | /r/HasProperty | a filtrate
Facets:
Source sentences:
text: Especially preferred is the use of an additional vessel as a slurry tank, into which phosphoric acid (which can be a filtrate, usually containing in the range of 0.5-3.5% sulfuric acid) and phosphate rock are contacted to form a slurry which is transported (as by an overflow pipe) to the dissolver vessel.