Sodium dichromate (Na2Cr2O7) is a bright orange, crystalline inorganic compound used as a chemical intermediate in producing other chromium compounds, dyes, and pigments. It is also used as a corrosion inhibitor and is a strong oxidizing agent, but it is toxic and a known human carcinogen, so it must be handled with extreme care and protective equipment.
Uses
- Chemical production: Primarily used as an intermediate to make other chromium compounds.
- Dyes and pigments: Used in the production of dyes and pigments.
- Corrosion inhibitor: Used to prevent corrosion on metal surfaces, especially in military hardware, notes Alliance Chemical.
- Wood preservative: Was previously used in wood preservation.
- Surface preparation: Used in mixtures with sulfuric acid for etching metal surfaces.
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