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ferric ammonium oxalate

noun Chemistry.

a green, crystalline, water-soluble, synthetically produced powder, (NH4)3Fe(C2O4)3⋅3H2O, used chiefly in the manufacture of blueprint paper.

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Also called ammonioferric oxalate, iron ammonium oxalate.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019