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
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/nm b/nm c/nm α/o β/o γ/o V/nm3 0.5563 0.4896 0.5663 90 120.657 90 0.1327 - 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)
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.
N-Bromosuccinimide Price
- Product number
- 400505
- Product name
- Tungsten(IV) oxide
- Purity
- 100 mesh, 99.99% trace metals basis
- Packaging
- 10g
- Price
- $120
- Updated
- 2024/03/01
- Product number
- 040367
- Product name
- Tungsten(IV) oxide
- Purity
- 99.9% (metals basis)
- Packaging
- 5g
- Price
- $77.9
- Updated
- 2024/03/01
- Product number
- 040367
- Product name
- Tungsten(IV) oxide
- Purity
- 99.9% (metals basis)
- Packaging
- 25g
- Price
- $240
- Updated
- 2024/03/01
- Product number
- 74-7430
- Product name
- Tungsten(IV) oxide (99.9%-W)
- Packaging
- 50g
- Price
- $270
- Updated
- 2021/12/16
- Product number
- 74-7430
- Product name
- Tungsten(IV) oxide (99.9%-W)
- Packaging
- 10g
- Price
- $70
- Updated
- 2021/12/16
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
TUNGSTEN (IV) OXIDE Suppliers
- Tel
- --
- Fax
- --
- webmestre-substances@ineris.fr
- Country
- France
- ProdList
- 6024
- Advantage
- 58
View Lastest Price from TUNGSTEN (IV) OXIDE manufacturers
- 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