ChemicalBook--->CAS DataBase List--->12036-22-5

12036-22-5

12036-22-5 Structure

12036-22-5 Structure
IdentificationMore
[Name]

TUNGSTEN (IV) OXIDE
[CAS]

12036-22-5
[Synonyms]

TUNGSTEN DIOXIDE
TUNGSTEN (IV) OXIDE
TUNGSTEN OXIDE
Tungsten oxide (WO2)
WO2
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
TUNGSTEN(IV) OXIDE: 99.9%
Tungsten(IV) oxide, 99.9% (metals basis)
Wolfram(IV)dioxide
[EINECS(EC#)]

234-842-7
[Molecular Formula]

O2W
[MDL Number]

MFCD00049709
[Molecular Weight]

215.84
[MOL File]

12036-22-5.mol
Chemical PropertiesBack Directory
[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
[color ]

brown
[Specific Gravity]

12.11
[Water Solubility ]

Soluble in acid and potassium hydroxide. Insoluble in water.
[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)
Hazard InformationBack Directory
[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.
[Flammability and Explosibility]

Nonflammable
Safety DataBack Directory
[Hazard Codes ]

Xi
[Risk Statements ]

R37:Irritating to the respiratory system.
[Safety Statements ]

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
[WGK Germany ]

3
[TSCA ]

Yes
Spectrum DetailBack Directory
[Spectrum Detail]

TUNGSTEN (IV) OXIDE(12036-22-5)IR1
Well-known Reagent Company Product InformationBack Directory
[Alfa Aesar]

Tungsten(IV) oxide, 99.9% (metals basis)(12036-22-5)
[Sigma Aldrich]

12036-22-5(sigmaaldrich)
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