ammonia alum (original) (raw)

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Related to ammonia alum: ammonium aluminum sulfate

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Noun 1. ammonia alum - a white crystalline double sulfate of aluminum: the ammonium double sulfate of aluminum, ammonium alum, , , atomic number 13 - a silvery ductile metallic element found primarily in bauxitedouble salt - a solution of two simple salts that forms a single substance on crystallization

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