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aluminum sulfate

noun, Chemistry
1.
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.
Origin
1865-1870
1865-70
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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