INTRODUCTION
Vanadium name was coin from the word Vanadis which means goddess of beauty and love in Scandinavian mythology.It takes a high polish and also one of the hardest of all metals.
Vanadium is the 19th most abundant elements in the Earth's crust.It has never been found in the pure state,but occurs in combination with various minerals throughout the world.
BASIC INFORMATIONS
- Atomic Number
- 23
- Atomic Mass
- 50.9415
- Atomic radius
- 0.122
- Ionization energy
- 650
- Electronic config
- 2,8,11,2
- Principal Valency
- +2
- Density g/cm³
- 6.11
- Melting point °C
- 1910
- Boiling point °C
- 3407
- Type of Element
- Metal
- Electronegativity
- 1.6
- Element Category
- Vanadium Group
- Appearance
- Silvery white solid
- Block
- d-block
- Period
- 4
- Group
- 5
- No of Isotopes
- 26
- Occurrence
- Combine
- Abundance in ppm
- 136
- Year of Discovery
- 1831
EXTRACTION
It is obtain by reducing it's oxide
OXIDATION STATES
+5,+4,+3,+2,+1,-1 (Amphoteric)
MAJOR SOURCE
Vanadinite, Roscoelite, carnotite
EXAMPLES OF COMPOUND PRESENT
vanadium monosulfide, metavanadic acid, vanadium dihydroxide
ECONOMIC IMPORTANCE
* Due to its hardness and great tensile strength it is used in many alloys such as ferrovanadium, nickel vanadium, and chrome vanadium.
* Chrome-vanadium steels are used in the production of springs and in transmission gears and other engine parts.
* Titanium-vanadium alloys are used for missile cases,jet-engine housings and nuclear-reactor components.
* As a catalyst,vanadium has largely replaced platinum in the manufacture of sulfuric acid.
