Table 2.

The composition of reference, corroded pH 10 disks, and corroded pH 2 disks after 30 days.

Atomic Ratio	Si	Al	Na	K	Ca	Mg	Zn	Zr	N	P	F	Ti
ref	53.7	11.5	7.6	5.9	3.5	3.3	1.3	0.6	9.9	1.3	1.4
OpH10	59.8	15.8	9.5	12.0	2.9
NpH2	76.9		1.1					9.9		8.8		3.3