vanadium

/və'neidjəm/

Thân thiện

A scientist holds a small sample of vanadium in a laboratory.

Definition

1. Noun:
   • A chemical element: Vanadium is a soft, silvery-white, metallic element that is toxic. It is used primarily as an alloying agent to strengthen steel.
   • Occurrence: It is not found freely in nature but occurs in several complex minerals, such as carnotite and vanadinite.

Usage Examples

• Noun:
  • Adding a small amount of vanadium to steel makes it stronger and more resistant to shock.
  • The mineral vanadinite is an important source of vanadium.

Advanced Usage

• "Vanadium pentoxide (V₂O₅)": This is the most commercially important compound of vanadium, used as a catalyst in the production of sulfuric acid and in ceramics.
  • Vanadium pentoxide is a key industrial catalyst.

Variants and Related Words

• Vanadate (n): A salt or ester of a vanadic acid.
  • The geologist identified a mineral containing vanadate ions.
• Vanadic (adj): Relating to or containing vanadium, especially in a higher valence state.
  • Vanadic compounds have specific catalytic properties.

Synonyms

• Element 23: Referring to its atomic number on the periodic table.
• V: Its chemical symbol.

Học thuật

Noun

1. a soft silvery white toxic metallic element used in steel alloys; it occurs in several complex minerals including carnotite and vanadinite

Từ đồng nghĩa

• V
• atomic number 23