Chromic Acid

Chromic acid is a chemical compound containing hexavalent chromium (Cr(VI)).


Chromic acid, also known as chromic acid (VI) or chromium trioxide, is an oxidizing chemical compound derived from chromium. Its chemical formula is generally represented by H₂CrO₄. It usually appears as red to orange crystals and is widely used for its oxidizing properties in various industrial and laboratory applications.

Properties and Characteristics:

  • Strong Oxidizer: Chromic acid is a potent oxidizing agent, capable of oxidizing many organic and inorganic compounds. This property makes it a valuable reagent in numerous chemical reactions.
  • Solubility: Chromic acid is soluble in water, forming a reddish solution. The concentration of the solution determines its oxidizing strength.
  • Stability: Although stable under many conditions, chromic acid can react violently with certain compounds, requiring proper handling and storage.


Chemical and Manufacturing Industry:

  • Used as a reagent in many chemical reactions, particularly as an oxidizing agent in the synthesis of organic and inorganic compounds.
  • Employed in the manufacturing of pigments, dyes, and industrial chemicals.

Surface Treatment:

  • Used in the chroming process, where it coats metals with a protective chrome layer, enhancing their corrosion resistance and aesthetic appearance.

Laboratory and Research:

  • Used as a laboratory reagent in various applications, including chemical analyses, compound synthesis, and research studies.
  • Employed to clean and prepare surfaces before analyses and experiments.

Other Uses:

  • Used in some medical applications to disinfect surfaces and medical instruments, although its use is less common due to its corrosive properties.
  • Employed in the photographic industry for certain development processes.

Safety and Precautions:

It is essential to handle and store chromic acid with caution due to its oxidizing and corrosive properties. Prolonged exposure or direct contact with the skin, eyes, or respiratory tract can result in serious injuries. Additionally, proper training and adherence to appropriate safety standards are required for its handling.

Data sheet

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Other names
Chromic acid, chromium(VI) chromate