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| a compound in which oxygen is bonded to one or more electropositive atoms |
| a double sulfate analogous to potassium alum, as aluminum ammonium sulfate, with the formula R2SO4?X2(SO4)3?24H2O, where R is alkali metal or ammonium |
| ferrate (fěr'āt') Pronunciation Key
A compound containing ferric oxide and another oxide. Ferrates are stable only in strongly alkaline conditions and impart a purple color to aqueous solutions. |