Question: what is the difference between phosphoric acid and orthophosphoric acid?
Answer: Phosphoric acid, also known as orthophosphoric acid or phosphoric(V) acid, is a weak acid with the chemical formula H3PO4. It is normally encountered as a colorless syrup of 85% concentration in water. The pure compound is a colorless solid. ... Orthophosphoric acid also forms esters, called organophosphates.