Tungsten trioxide - Materials / Alfa Chemistry

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Tungsten trioxide

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Catalog Number

ACMA00014407

Product Name

Tungsten trioxide

Category

WO3

Description

DryPowder; DryPowder, OtherSolid; DryPowder, PelletsLargeCrystals, OtherSolid; OtherSolid; PelletsLargeCrystals

IUPAC Name

trioxotungsten

Molecular Weight

231.8g/mol

Molecular Formula

WO3

Canonical SMILES

O=[W](=O)=O

InChI

InChI=1S/3O.W

InChI Key

ZNOKGRXACCSDPY-UHFFFAOYSA-N

Melting Point

1472 °C

Purity

0.999

Density

7.2

Solubility

Insol in water; sol in caustic alkalies; very slightly sol in acids;SLIGHTLY SOL IN HYDROFLUORIC ACID

Application

Tungsten trioxide serves a multitude of purposes across various industries due to its unique properties. It is a canary-yellow, heavy powder that changes to a dark orange when heated, returning to its original color upon cooling. This compound is insoluble in water, but soluble in caustic alkalies and with difficulty in acids, making it a stable and useful material. Primarily, it is utilized in the manufacture of tungstates, which are critical components in x-ray screens and for fireproofing fabrics. Beyond these applications, tungsten trioxide is also employed in creating gas sensors, and utilized as a pigment in ceramics and paints. It plays a significant role in the production of electrochromic, or smart, windows and finds relevance in semiconductor technology. Its potential as an efficient photo-catalyst, especially when combined with titanium dioxide, is being explored for its promising applications under visible light. Moreover, recent advancements reveal its use as an anode material in high-performance lithium-ion batteries, particularly in its mesoporous tungsten trioxide polyaniline nanocomposite form.

Color/Form

Canary yellow, heavy powder; dark orange when heated, regaining the original color on cooling;Yellow, rhombic crystals, or yellow-orange powder

Complexity

61.8

Compound Is Canonicalized

Yes

Covalently-Bonded Unit Count

Defined Atom Stereocenter Count

Defined Bond Stereocenter Count

Deprecated CAS

12165-16-1, 12165-37-6, 12165-45-6, 12737-75-6, 1328-66-1, 160637-48-9, 30445-72-8, 530099-64-0, 611206-70-3, 1344994-39-3, 627811-63-6

EC Number

215-231-4

Exact Mass

231.935677g/mol

Formal Charge

Heavy Atom Count

Hydrogen Bond Acceptor Count

Hydrogen Bond Donor Count

Isotope Atom Count

MeSH Entry Terms

tungsten oxide;tungsten trioxide;WO3 cpd

Monoisotopic Mass

231.935677g/mol

Rotatable Bond Count

Topological Polar Surface Area

51.2Å²

Undefined Atom Stereocenter Count

Undefined Bond Stereocenter Count

MSDS

Download MSDS

COA

Download COA

Spec Sheet

Download Spec Sheet

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