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. 2020 Apr 14;15(4):e0231045. doi: 10.1371/journal.pone.0231045

Table 2. Chemical composition of corn stover (w/w).

Component (w/w%) Component (w/w%)
Silicon Dioxide (SiO2) 34.60 Sulfur Trioxide (SO3) 0.57
Alumina (Al2O3) 5.84 Titanium Dioxide (TiO2) 0.42
Potassium Oxide (K2O) 4.14 Sudium Oxide (Na2O) 0.19
Calcium Oxide (CaO) 3.55 Manganese Oxide (MnO) 0.11
Iron (III) Oxide (Fe2O3) 2.81 Strontium Oxide (SrO) 0.03
Magnesium Oxide (MgO) 2.51 Barium Oxide (BaO) 0.01
Phosphorus Pentoxide (P2O5) 2.28 Loss on ignition 42.94