Table 1 Percentage of chemical composition of RHA determined by XRF.

From: Rice husk as raw material in the synthesis of analcime

SiO2

Al2O3

Fe2O3

CaO

Na2O

K2O

MnO

TiO2

MgO

P2O5

98.48

0.2

0.26

0.14

0.30

0.15

0.05

0.02

0.17

0.19

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