Assertion: phosphoric acid's impurity | /r/HasProperty | removed in this case
Facets:
Source sentences:
text: In this case magnesium and aluminum impurities are claimed to be removed in the form of a magnesium-aluminum fluoride.
text: In this case magnesium and aluminum impurities are claimed to be removed in the form of a magnesiumaluminum fluoride.
text: In this case magnesium and aluminum impurities are claimed to be removed in the form of a magnesiumaluminum fluoride.