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aluminum sulfate
noun
, Chemistry.
- a white, crystalline, water-soluble solid, Al 2 (SO 4 ) 3 , used chiefly as a water-purifying agent, as a mordant, and as a size in the manufacture of paper.
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Word History and Origins
Origin of aluminum sulfate1
First recorded in 1865–70
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Example Sentences
Vitriol is copper or iron sulfate, saltpeter is potassium nitrate, and alum is an aluminum sulfate salt.
From Project Gutenberg
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