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| 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 |
| like or containing an alkali, which neutralize acids to form salts and turn red litmus paper blue, or having a pH value greater than 7 |
aryl ar·yl (ār'əl)
n.
An organic radical derived from an aromatic compound by the removal of one hydrogen atom.