Table 1 Content of ions and double salts in recrystallized efflorescence from Aspaas House
Ion | Ion content, mg g−1 | Possible sulfate salts | Metal salt content, mg g−1 |
|---|---|---|---|
Sulfate (\({\text{SO}}_{4}^{{2 - }}\)) | 440.9 | ||
Ammonium (\({\text{NH}}_{4}^{{+}}\)) | 48.0 | ||
Zinc (Zn2+) | 26.6 | (NH4)2Zn(SO4)2·6H2O | 163.1 |
Aluminum (Al3+) | 21.3 | NH4Al(SO4)2·12H2O | 192.1 |
KAl(SO4)2·12H2O | 172.7 | ||
Magnesium (Mg2+) | 17.3 | (NH4)2Mg(SO4)2·6H2O | 256.0 |
Potassium (K+) | 14.2 | See Aluminum entry | |
Iron (Fe2+) | 13.7 | (NH4)2Fe(SO4)2·6H2O | 92.6 |
Sodium (Na+) | 7.4 | Na2SO4·10H2O | 103.9 |
Calcium (Ca2+) | 4.6 | CaSO4·2H2O | 19.6 |
Sum 1025.7 | |||