vanadate

/'vænədeit/

Thân thiện

A scientist adds a yellow vanadate solution to a test tube.

Definition

1. Noun:
   • A salt or ester of vanadic acid: A chemical compound formed when vanadic acid reacts with a base or an alcohol.
   • An anion containing pentavalent vanadium: A negatively charged ion (anion) that includes vanadium in its +5 oxidation state.

Usage Examples

• Noun:
  • Ammonium vanadate is a common reagent in chemical laboratories.
  • The mineral carnotite is a source of uranium and vanadate ions.

Advanced Usage

• In Chemistry: The term is used specifically in inorganic and mineral chemistry to describe compounds where the vanadate anion (e.g., VO₄³⁻) is combined with various cations.
  • The structure of the vanadate anion is tetrahedral, similar to phosphate.

Variants and Related Words

• Vanadic (adj): Relating to vanadium, especially in a pentavalent state.
  • Vanadic acid is the precursor to vanadate salts.
• Vanadinite (n): A mineral consisting of lead chlorovanadate, Pb₅(VO₄)₃Cl.
• Metavanadate (n): A vanadate containing the polymeric anion (VO₃⁻)ₙ.

Synonyms

• Vanadium salt (when referring to the ionic compound form).

Notes

• Vanadates are often discussed in the context of their chemical behavior, industrial applications (e.g., catalysts), and occurrence in minerals. They are structurally and chemically analogous to phosphates.

Học thuật

Noun

1. a salt or ester of vanadic acid; an anion containing pentavalent vanadium