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TUNGSTEN (IV) OXIDE

Product Name
TUNGSTEN (IV) OXIDE
CAS No.
12036-22-5
Chemical Name
TUNGSTEN (IV) OXIDE
Synonyms
WO2;WO2.72;TUNGSTEN OXIDE;Einecs 234-842-7;TUNGSTEN DIOXIDE;Tungsten(Ⅳ)oxide;Wolfram(IV)dioxide;TUNGSTEN (IV) OXIDE;Tungsten oxide (WO2);WO2,99.9%(metalsbasis)
CBNumber
CB5421675
Molecular Formula
O2W
Formula Weight
215.84
MOL File
12036-22-5.mol
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TUNGSTEN (IV) OXIDE Property

Melting point:
1500-1600°C
Boiling point:
1730℃[at 101 325 Pa]
Density 
12,11 g/cm3
solubility 
insoluble in H2O, organic solvents
form 
Powder
Specific Gravity
12.11
color 
brown
Water Solubility 
Soluble in acid and potassium hydroxide. Insoluble in water.
Crystal Structure
MoO2 type
crystal system
Monoclinic
Space group
P21/c
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.55630.48960.566390120.657900.1327
Exposure limits
ACGIH: TWA 3 mg/m3
NIOSH: TWA 5 mg/m3; STEL 10 mg/m3
CAS DataBase Reference
12036-22-5(CAS DataBase Reference)
EPA Substance Registry System
Tungsten oxide (WO2) (12036-22-5)
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Safety

Hazard Codes 
Xi
Risk Statements 
37
Safety Statements 
26-36
WGK Germany 
3
TSCA 
Yes
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P403+P233Store in a well-ventilated place. Keep container tightly closed.

P405Store locked up.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
400505
Product name
Tungsten(IV) oxide
Purity
100 mesh, 99.99% trace metals basis
Packaging
10g
Price
$120
Updated
2024/03/01
Alfa Aesar
Product number
040367
Product name
Tungsten(IV) oxide
Purity
99.9% (metals basis)
Packaging
5g
Price
$77.9
Updated
2024/03/01
Alfa Aesar
Product number
040367
Product name
Tungsten(IV) oxide
Purity
99.9% (metals basis)
Packaging
25g
Price
$240
Updated
2024/03/01
Strem Chemicals
Product number
74-7430
Product name
Tungsten(IV) oxide (99.9%-W)
Packaging
50g
Price
$270
Updated
2021/12/16
Strem Chemicals
Product number
74-7430
Product name
Tungsten(IV) oxide (99.9%-W)
Packaging
10g
Price
$70
Updated
2021/12/16
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TUNGSTEN (IV) OXIDE Chemical Properties,Usage,Production

Description

Tungsten(IV) oxide, WO2, is a bronze-colored solid that crystallizes in a monoclinic cell. The rutile-like structure features distorted octahedral WO6 centers with alternate short W-W bonds (248 pm). Each tungsten center has the d2 configuration, which gives the material a high electrical conductivity. WO2 is prepared by reduction of WO3 with tungsten powder in about 40 h at 900℃. An intermediate in this reaction is the partially reduced, mixed valence species W18O49.
 2WO3 + W→3WO2

Chemical Properties

brown powder(s), may become purple on standing; formed when WO3 is reduced by H2 at 575°C–600°C [KIR83] [STR93]

Uses

Tungsten(IV) oxide is used in the production of tungsten and tungstates, in alloys, in fire-proofing fabrics and as a ceramic pigment. It is used to study their chromism, photocatalysis and sensing capabilities. It is associated with rhenium trioxide particles and used for detection of protonatable, radical and precharged species under laser desorption ionization.

TUNGSTEN (IV) OXIDE Preparation Products And Raw materials

Raw materials

Preparation Products

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TUNGSTEN (IV) OXIDE Suppliers

China 99 France 1 Germany 3 India 2 Japan 1 Russia 1 Switzerland 1 United Kingdom 4 United States 15 Global 127
Aladdin Scientific
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View Lastest Price from TUNGSTEN (IV) OXIDE manufacturers

Career Henan Chemical Co
Product
TUNGSTEN (IV) OXIDE 12036-22-5
Price
US $1.00/KG
Min. Order
1KG
Purity
85.0-99.8%
Supply Ability
200kg
Release date
2019-08-30

12036-22-5, TUNGSTEN (IV) OXIDERelated Search:

SODIUM TUNGSTATE Lithium tungsten oxide, 99.9% (metals basis),Lithium tungsten oxide, 99% min,LITHIUM TUNGSTEN OXIDE SILVER TUNGSTEN OXIDE COBALT(II) TUNGSTEN OXIDE,COBALT TUNGSTEN OXIDE COPPER(II) TUNGSTEN OXIDE,Copper(II) tungsten oxide, 99.5% (metals basis) Phosphotungstic acid 44-hydrate NICKEL TUNGSTEN OXIDE,Nickel tungsten oxide, 99.9% (metals basis excluding Co), Co <100ppm cadmium tungsten oxide CALCIUM TUNGSTEN OXIDE Magnesium tungsten oxide, 99% (metals basis),MAGNESIUM TUNGSTEN OXIDE ALUMINIUM TUNGSTEN OXIDE,ALUMINUM TUNGSTEN OXIDE SODIUM PHOSPHOTUNGSTATE BARIUM TUNGSTEN OXIDE TUNGSTEN (IV) OXIDE (TUNGSTEN TRIOXIDE),TUNGSTEN OXIDE YELLOW (CARBIDE GRADE MILLED) CESIUM TUNGSTEN OXIDE MANGANESE(II) TUNGSTEN OXIDE BARIUM YTTRIUM TUNGSTEN OXIDE Rubidium tungsten oxide, 99.5% (metals basis)

  • Tungsten(IV) oxide, 99.9% (metals basis)
  • Wolfram(IV)dioxide
  • Tungsten(IV) oxide -100 mesh, 99.99% trace metals basis
  • Tungsten(IV) oxide, 99.9% trace metals basis
  • Tungsten oxide (WO2)
  • WO2
  • TUNGSTEN DIOXIDE
  • TUNGSTEN OXIDE
  • TUNGSTEN (IV) OXIDE
  • Einecs 234-842-7
  • TUNGSTEN(IV) OXIDE, -100 MESH, 99.99%
  • TUNGSTEN (IV) OXIDE (99.9%-W)
  • WO2,99.9%(metalsbasis)
  • Tungsten(Ⅳ)oxide
  • TUNGSTEN(IV) OXIDE: 99.9%, -150 MICRON
  • nm 99.9%Tungsten oxide (WO2 WO2)
  • TUNGSTEN(IV) OXIDE: 99.9%
  • WO2.72
  • 12036-22-5
  • Catalysis and Inorganic Chemistry
  • metal oxide
  • TungstenMetal and Ceramic Science
  • Catalysis and Inorganic Chemistry
  • Chemical Synthesis
  • Oxides
  • Tungsten