Assertion: phosphoric acid | /r/HasProperty | calculated to a 54% p 2 o 5 basis
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Source sentences:
text: When methanol was used, the impurity contents of the phosphoric acid produced (calculated to a 54% P 2 O 5 basis) were as follows: 0.51% CaO, 0.41% MgO, 0.21% Fe 2 O 3 and 0.91% Al 2 O 3 .