Table 2.

Ti and P elemental analyses of the samples (TiO₂)_x(VPA).

Theoretical Ti/P Ratio	Experimental
	% Ti	% P	Ti/P Ratio
25	50.69	1.03	32
50	51.29	0.72	46
75	82.00	0.82	65
100	50.03	0.35	92
125	68.43	0.36	123
150	79.84	0.35	148
200	106.31	0.36	190