ferric ammonium oxalate

ferric ammonium oxalate

[′fer·ik ə′mōn·ē·əm ′äk·sə‚lāt]
(organic chemistry)
(NH4)3Fe(C2O4)3·3H2O Green, crystalline material, soluble in water and alcohol, sensitive to light; used in blueprint photography.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.