Assertion: phosphoric acid | /r/HasProperty | purified
Facets:
value: further
type: MANNER
Source sentences:
text: The phosphoric acid from both processes may be further purified by removing compounds of arsenic and other potentially toxic impurities.
text: The phosphoric acid from both processes may be further purified by removing compounds of arsenic and other potentially toxic impurities.
text: The phosphoric acid from both processes may be further purified by removing compounds of arsenic and other potentially toxic impurities.
text: Next, the phosphoric acid which is to be purified is passed through the adsorber bed, cadmium and other metals being retained on the column.
text: The purifying treatment is effected in an extraction zone comprising n-stages, where n is equal to or more than 5; the barium compound is added to the phosphoric acid which is to be purified and the mixture is admitted near the head of the extraction zone.
text: A significant teaching of this patent is that the phosphoric acid being purified must have a low fluorine content; i.e., the phosphoric acid should contain no more than about 2.0% by weight fluorine.