To provide foods-quality phosphoric acid, phosphate ore is initial lessened with coke in an electric arc furnace, to give elemental phosphorus. This process is often called the thermal system or the electrical furnace procedure. Silica can also be added, leading to the creation of calcium silicate slag. 3. Add data https://phosphoric-acid-8564451.qowap.com/91713190/5-simple-techniques-for-oxalic-acid-99