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/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)

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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

Shanghai Buwei Applied Materials Technology Co. LTD

Tel: 021-64112762 18930491979
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J & K SCIENTIFIC LTD.

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Fax: 86-21-61259102
Email: market03@meryer.com
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Alfa Aesar

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Email: saleschina@alfa-asia.com
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Energy Chemical

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Spectrum Chemical Manufacturing Corp.

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Shanghai Aladdin Bio-Chem Technology Co.,LTD

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Chengdu HuaXia Chemical Reagent Co. Ltd

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Email: cdhxsj@163.com
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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:

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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