Sodium chromate

  • Chrome Atrium
  • Sodium monochromate
  • Dinatriumchromat
  • Chromic acid sodium salt
  • Sodium chromate
  • Anhydrous: 7775-11-3
  • Tetrahydrate: 10034-82-9

Odorless, translucent yellow crystals

Fixed

2.72 g · cm -3

792 ° C

Thermal decomposition

Well in water (530 g · l-1 at 20 ° C)

Risk

Not assigned because carcinogenic

136 mg · kg -1 ( LD50, rat, oral)

Template: Infobox chemical / molecular formula search is not possible

Sodium chromate is a chemical compound of the elements of sodium, chromium and oxygen. The sodium salt of chromic acid is used in the laboratory as a strong oxidizing agent, as a marker substance in the biological research, as a corrosion inhibitor in cooling devices and as wood preservatives. It is produced as an intermediate in the production of chromium from the mineral chromite, and, like all highly toxic chromates.

Safety

Sodium chromate is highly oxidizing. It is carcinogenic, teratogenic and can cause allergies. The substance is toxic if swallowed and very toxic by inhalation.

CAS registry number Dangerous Substances Directive (67/548/EEC)
188656
de