permanganic acid

Thân thiện

A chemist carefully handles a beaker containing permanganic acid.

Definition

1. Noun:
   • An unstable purple acid (HMnO₄) known only in solution or as permanganate salts: Permanganic acid is a chemical compound, a strong oxidizing agent that is not isolatable in pure form. It exists in aqueous solution or as its salts, which are called permanganates.

Usage Examples

• Noun:
  • Permanganic acid is a powerful oxidizing agent used in analytical chemistry.
  • The purple color of the solution is characteristic of permanganic acid.
  • The compound decomposes readily, illustrating the instability of permanganic acid.

Advanced Usage

• Chemical Context: The term is used almost exclusively in chemistry to refer to the parent acid of the permanganate ion (MnO₄⁻).
  • The reaction proceeds through the formation of permanganic acid as an intermediate.

Variants and Related Words

• Permanganate (n): A salt or ester of permanganic acid, containing the MnO₄⁻ anion.
  • Potassium permanganate is a common disinfectant.

Synonyms

• HMnO₄: The chemical formula for permanganic acid.

Related Phrases

• Permanganate ion: The anion (MnO₄⁻) derived from permanganic acid.
• Oxidizing acid: A descriptive term for acids like permanganic acid that readily accept electrons in redox reactions.

Học thuật

Noun

1. an unstable purple acid (HMnO4) known only in solution or of permanganate salts