Basic information Description References Safety Supplier Related
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VANADIUM(IV) OXIDE

Basic information Description References Safety Supplier Related

VANADIUM(IV) OXIDE Basic information

Product Name:
VANADIUM(IV) OXIDE
Synonyms:
  • Vanadium oxide (VO2)
  • vanadiumoxide(vo2)
  • VO2
  • VANADIUM TETRAOXIDE
  • VANADIUM OXIDE
  • VANADIUM(IV) OXIDE
  • VANADIUM DIOXIDE
  • Vanadium(Ⅳ)oxide
CAS:
12036-21-4
MF:
O2V
MW:
82.94
EINECS:
234-841-1
Product Categories:
  • metal oxide
Mol File:
12036-21-4.mol
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VANADIUM(IV) OXIDE Chemical Properties

Melting point:
1967°C
Density 
4.339 g/mL at 25 °C(lit.)
form 
Powder
Specific Gravity
4.339
color 
black
Water Solubility 
Insoluble in water.
Exposure limits
NIOSH: Ceiling 0.05 mg/m3
CAS DataBase Reference
12036-21-4(CAS DataBase Reference)
EPA Substance Registry System
Vanadium oxide (VO2) (12036-21-4)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/38
Safety Statements 
26-37/39
RIDADR 
UN3285
WGK Germany 
3
10-23
HazardClass 
6.1
PackingGroup 
II
HS Code 
28253090

MSDS

  • Language:English Provider:ALFA
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VANADIUM(IV) OXIDE Usage And Synthesis

Description

Vanadium (IV) dioxide is a kind of inorganic compound with its chemical formula being VO2. It can undergo a phase transition at a normal temperature (~66 °C). Its electrical resistivity and opacity can also change several fold. These special properties make it have many applications. For example, it can be used in chemical sensors, energy-conserving coatings, transparent conductors and switching materials. It can also be used as a stationary optical shutter, optical modulators, cameras and data storage. Moreover, it can be applied to the missile guidance system due to its infrared modulation capability. It can also be used to make thin films which have been used in electro-optical switches, micro-optical switch, passive smart radiators and sunshields for spacecraft. It can also be used in phase change computing and memory.

References

https://en.wikipedia.org/wiki/Vanadium(IV)_oxide
https://www.alfa.com/en/catalog/022957/

Chemical Properties

Blue-black powder. Insoluble in water; soluble in alkalies and acids.

Chemical Properties

Vanadium(IV) Oxide (vanadium dioxide, VO2) is a blue-black solid, having a distorted rutile (TiO2) structure. It can be prepared from the reaction of V2O5 at the melting point with sulfur or carbonaceous reductants such as sugar or oxalic acid. The dioxide slowly oxidizes in air. Vanadium dioxide dissolves in acids to give the stable (VO)2+ ions and in hot alkalies to yield vanadate(IV) species, eg, (HV2O5)?.

Uses

Vanadium(IV) oxide is used in chemical sensors, energy-conserving coatings, transparent conductors and switching materials. It acts as a stationary optical shutter, optical modulators, cameras and data storage. As infrared modulators, it is used for the missile guidance systems. Thin films made up of vanadium dioxide find applications in electro-optical switches, micro-optical switch, passive smart radiators and sunshields for spacecraft.

Definition

ChEBI: Vanadium dioxide is a vanadium oxide.

Hazard

Toxic and irritating.

Flammability and Explosibility

Nonflammable

VANADIUM(IV) OXIDESupplier

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