Chem.
a red or orange crystalline, water-soluble solid, Na 2 Cr 2 O 7 ·2H 2 O, used as an oxidizing agent in the manufacture of dyes and inks, as a corrosion inhibitor, a mordant, a laboratory reagent, in the tanning of leather, and in electroplating.
Also, sodium bichromate .
[ 1900-05 ]