Potassium dichromate

CAS Number
7778-50-9
EC Number
231-801-5

What is Potassium dichromate?

Potassium dichromate (CAS 7778-50-9), also known as bichromate of potash, is an inorganic chromium salt used industrially as a powerful oxidizing agent and corrosion inhibitor.

Where is Potassium dichromate used?

  • Surface treatment, tanning and analytical chemistry: core reagent
  • Leather processing: primary oxidizing agent in chrome tanning, converting hides into durable leather
  • Textile dyeing: mordant that fixes dye onto natural fibers
  • Metal finishing and anti-corrosion: passivates steel and aluminum surfaces
  • Mining and metallurgy: flotation reagent and surface modifier in ore separation

Commercial specifications

  • Packaging ranges from small drums to bulk quantities

Other Names (Synonyms)

bichromate of potash|Potassium dichromate(VI)|Dipotassium dichromium heptaoxide|Dipotassium dichromate|Dipotassium bichromate|Dichromic acid dipotassium salt|Chromium potassium oxide|Potassium bichromate

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How is Potassium dichromate classified and handled safely? Learn More

Danger
GHS03· Oxidizing GHS05· Corrosive GHS06· Toxic GHS08· Health Hazard GHS09· Environmental Hazard GHS07· Irritant

Hazard Statements

H272 May intensify fire; oxidizer [Danger Oxidizing liquids; Oxidizing solids]
H301 Toxic if swallowed [Danger Acute toxicity, oral]
H312 Harmful in contact with skin [Warning Acute toxicity, dermal]
H314 Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
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