Category
Chemical Primary Standard
CAS Number
7789-12-0
Molecular Formula
Na₂Cr₂O₇·2H₂O
Molecular Weight
298g/mol
Synonym

Disodium dichromate dihydrate;

Keywords
Miscellaneous compounds

Sodium dichromate dihydrate (Na₂Cr₂O₇·2H₂O) is a powerful oxidizing agent used in organic synthesis, metal surface treatment, and pigment production. It’s also employed in leather tanning and as a corrosion inhibitor, though it is toxic and carcinogenic, requiring careful handling.