Catalog Number
ACMA00014407
Product Name
Tungsten trioxide
Description
DryPowder; DryPowder, OtherSolid; DryPowder, PelletsLargeCrystals, OtherSolid; OtherSolid; PelletsLargeCrystals
Molecular Weight
231.8g/mol
Canonical SMILES
O=[W](=O)=O
InChI Key
ZNOKGRXACCSDPY-UHFFFAOYSA-N
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
Compound Is Canonicalized
Yes
Covalently-Bonded Unit Count
1
Defined Atom Stereocenter Count
0
Defined Bond Stereocenter Count
0
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
Exact Mass
231.935677g/mol
Hydrogen Bond Acceptor Count
3
Hydrogen Bond Donor Count
0
MeSH Entry Terms
tungsten oxide;tungsten trioxide;WO3 cpd
Monoisotopic Mass
231.935677g/mol
Topological Polar Surface Area
51.2Ų
Undefined Atom Stereocenter Count
0
Undefined Bond Stereocenter Count
0
