only the apatite series has an important role as phosphorus source. This series is represented by the following formula for a unitary cell Ca10(PO4)6 (F, Cl ou OH)2.Some phosphorus compounds glow in the dark or emit light in response to absorbing radiation and are used in fluorescent light bulbs and television sets. Calcium phosphate (phosphate rock), mostly mined in Florida and North Africa, can be heated to 1,200–1,500 °C with sand, which is mostly SiO2, and coke (impure carbon) to produce vaporized…
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