Assertion: concentrated phosphoric acid | /r/HasProperty | about 35%
Facets:
Source sentences:
text: In the present invention, compared to the prior art "gypsum processes", the control of reactant concentrations and filtration rates are improved, a concentrated phosphoric acid (about 35% to about 55% P 2 O 5 ) is produced, sulfuric acid usage is reduced and a substantial reduction in electrical and heat energy consumption is realized.