Table 3:

Chemical composition (Ca, P and Na) of the synthesized NaPYG materials determined by ICP-OES (moles/100 g of dissolved material) and total weight percent of water determined by TGA.

Samples	Ca (mol/100 g)	P (mol/100 g)	Na (mol/100 g)	H2O w%
NaPYG-000	0.320 ± 0.003	0.591 ± 0.004	0.583 ± 0.003	20.1 ± 0.5
NaPYG-010	0.620 ± 0.003	0.599 ± 0.004	0.100 ± 0.001	13.7 ± 0.5
NaPYG-020	0.645 ± 0.004	0.581 ± 0.004	0.100 ± 0.001	12.7 ± 0.5
NaPYG-030	0.669 ± 0.003	0.568 ± 0.005	0.060 ± 0.001	15.3 ± 0.5
NaPYG-040	0.686 ± 0.003	0.545 ± 0.002	0.030 ± 0.001	15.6 ± 0.5
NaPYG-050	0.672 ± 0.006	0.520 ± 0.002	0.030 ± 0.001	15.0 ± 0.5
NaPYG-060	0.772 ± 0.005	0.540 ± 0.005	0.020 ± 0.001	4.9 ± 0.5