Sodium chromate

Sodium chromate (CAS 7775-11-3) is an inorganic chromium(VI) salt used industrially as a corrosion inhibitor and oxidizing agent. Also known as disodium chromate.

Where is Sodium chromate used?

• Metal finishing and mining: passivation agent applied to steel surfaces
• Non-ferrous surfaces: prevents oxidative degradation in aggressive environments
• Textile and leather: mordant in dyeing, fixing chromium-based dyes to fiber substrates
• Industrial water treatment, particularly cooling towers: inhibits corrosion of metal infrastructure by forming a protective film
• Paper manufacturing: oxidizing agent in pulp treatment and surface chemistry processes
• It improves color fastness and durability for various materials.

Good to know: Buyers should confirm purity specifications and chromium(VI) content with suppliers, as requirements vary between industrial and process-specific grades.