Final answer:
An orthophore is made artificially esophoric by the addition of orthophosphoric acid.
Step-by-step explanation:
An orthophore is made artificially esophoric by the addition of orthophosphoric acid. Orthophosphoric acid can be prepared by treating calcium phosphate rock with concentrated sulfuric acid.
This reaction produces a solution of orthophosphoric acid, which can then be used to make an orthophore.
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