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Table 2 Composition of phosphate rock in Egypt

From: Importance of phosphate pock application for sustaining agricultural production in Egypt

Oxide (%) El Sebaiya PR Safaga PR Abu Tartur PR
P2O5 24.9 19.4 27.3
CaO 43.5 43.9 40.2
Fe2O3 2.27 1.2 2.93
SiO2 12.2 3.71 6.13
Al2O3 1.83 2.21 1.7
Na2O 1.62 1.73 0.72
K2O 0.12 0.16 0.13
MgO 1.52 5.3 1.26
Cl 0.55 0.45 0.17
CO2 8.66 17 7.25
SO3 3.73 1.35 8.75
F 1.16 1.21 3.0