Chromium Vi Oxide Formula

Chromium (VI) Oxide Formula

The chromium trioxide or chromic anhydride formula is another name for the Chromium VI Oxide Formula. It is an inorganic substance with the chemical composition CrO3. Furthermore, it is the acidic anhydride of chromic acid and is occasionally sold or used in businesses under the same name.

When anhydrous, this chemical is a solid of a dark-purple colour that changes to a bright orange colour when wet and dissolves in water as a result of the hydrolysis process. Millions of kilogrammes are produced annually, mostly for the purpose of electroplating. Furthermore, Chromium VI Oxide Formula is both a potent oxidant and a carcinogen.

 Chromium (VI) Oxide Properties 

Physical properties of the Chromium VI Oxide Formula:

Chemical formula CrO3

Appearance           Dark red granular solid

Odour                       Odorless

Solubility           Soluble in water, sulphuric acid, nitric acid, acetic acid, acetone. 

Melting point           197°c

Boiling point           250°c

Density           2.7 g/cm3

Molar mass           99.993 g/mol 

Chemical properties of Chromium VI Oxide Formula:

 At 197 degrees Celsius, chromium trioxide breaks down, releasing oxygen and producing Cr2O3.

When water and the Chromium VI Oxide Formula react, chromic acid is produced. Chromic acid, with the chemical formula H2CrO4, is an extremely weak acid.

 Chromium (VI) Oxide Structure 

Density functional theory can be used to compute the monomeric CrO3 structure, and it has been predicted that it will be pyramidal (point group C3v) rather than planar (point group D3h). Below is an illustration of its chemical structure using the standard symbols that it typically employs for organic molecules.

 Chromium (VI) Oxide Uses 

  • The manufacturing of dye, ink, and paint uses it.
  • The chrome plating process uses it. A thin coating that stops corrosion is created when the trioxide combines with metals like zinc and cadmium.
  • It is employed in engraving and tanning.
  • The anodizing of aluminium uses it.
  • Aerospace applications also make use of it.
  • Photography uses it.
  • As an oxidising agent, it is utilised.

Safety Measurements 

  • Chromium trioxide is extremely corrosive, poisonous, and carcinogenic in nature.
  • Alcohols and other organic molecules are ignited on contact by the powerful oxidant chromium trioxide in nature.
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