Table 2 Oxide and elemental composition of the unreacted stilbite determined by XRF.
From: Rapid CO2 mineralization by zeolite via cation exchange
Oxide composition [mass %] | Elemental composition [mass%] | Number of atoms or H2O for 18 framework O atoms | |||
|---|---|---|---|---|---|
SiO2 | 57.31 ± 0.45 | Si | 26.79 ± 0.21 | Si | 6.80 |
Al2O3 | 15.19 ± 0.06 | Al | 8.04 ± 0.03 | Al | 2.12 |
CaO | 7.86 ± 0.05 | Ca | 5.62 ± 0.04 | Ca | 1.00 |
Na2O | 0.51 ± 0.01 | Na | 0.38 ± 0.006 | Na | 0.12 |
H2O | 18.95 ± 0.55 | O | 40.10 ± 0.81 | H2O | 7.51 |
