Table 3: Composition and dissociation energy of oxides in highlands regolith. Turkevich [16], Ptacek [19], Brewer [20], Lide [21], and McKay [17].
Oxide |
Oxide in reolith [13] |
Dissociation Energy [14,15] |
Gram Mol |
Gram Mol Ratio |
Molar % in Oxide |
||||||
mMol |
O2 |
Metal |
O2 |
Metal |
O2 |
Metal |
|||||
% |
KJ/mol |
eV |
J/g |
g mol |
G mol |
g mol |
% |
% |
g mol |
g mol |
|
SiO2 |
45.5 |
707.6 |
7.33 |
11793 |
60 |
32 |
28 |
53 |
47 |
14.56 |
12.74 |
Al2O3 |
22.2 |
1030 |
10.67 |
10098 |
102 |
48 |
54 |
47 |
53 |
10.66 |
11.99 |
FeO |
7.5 |
410.3 |
4.25 |
5699 |
72 |
16 |
56 |
22 |
78 |
1.2 |
4.2 |
CaO |
15 |
431.3 |
4.47 |
7702 |
56 |
16 |
40 |
28 |
72 |
2.4 |
6 |
MgO |
7.8 |
418.7 |
4.34 |
10468 |
40 |
16 |
24 |
4 |
6 |
1.25 |
1.87 |
TiO2 |
1.3 |
669.9 |
6.94 |
8374 |
80 |
32 |
48 |
4 |
6 |
0.42 |
0.62 |
Anorthite |
60% [17] |
1165 [19] |
12.07 |
4191 |
278 |
128 |
150 |
46 |
54 |
76.8 |
90 |
Ilmenite |
10% [17] |
1154 |
11.9 |
7592 |
152 |
48 |
104 |
32 |
68 |
4.8 |
10.4 |