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Tungsten Trioxide

CAS #: 1314-35-8
Linear Formula:
WO3
MDL Number
MFCD00049709
EC No.:
234-842-7

ORDER

Product Product Code ORDER SAFETY DATA Technical data
(2N) 99% Tungsten Trioxide W-OX3-02 SDS > Data Sheet >
(2N5) 99.5% Tungsten Trioxide W-OX3-025 SDS > Data Sheet >
(3N) 99.9% Tungsten Trioxide W-OX3-03 SDS > Data Sheet >
(3N5) 99.95% Tungsten Trioxide W-OX3-035 SDS > Data Sheet >
(4N) 99.99% Tungsten Trioxide W-OX3-04 SDS > Data Sheet >
(5N) 99.999% Tungsten Trioxide W-OX3-05 SDS > Data Sheet >
WHOLESALE/SKU 0000-742-{{nid}}

Tungsten Trioxide Properties (Theoretical)

Compound Formula WO3
Molecular Weight 231.85
Appearance Yellow Powder
Melting Point 1473 °C (2683 °F)
Boiling Point 1700 °C ( 3092 °F)
Density 7.16 g/cm3
Solubility in H2O Insoluble
Exact Mass 231.936 g/mol
Monoisotopic Mass 231.935644 Da
Charge -6
Crystal Phase / Structure Monoclinic

Tungsten Trioxide Health & Safety Information

Signal Word N/A
Hazard Statements N/A
Hazard Codes N/A
Precautionary Statements N/A
Flash Point Not applicable
Risk Codes N/A
Safety Statements N/A
RTECS Number YO7760000
Transport Information NONH for all modes of transport

About Tungsten Trioxide

Tungsten Trioxide is generally immediately available in most volumes. Ultra high purity, high purity, submicron and nanopowder forms may be considered. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.

Synonyms

Trioxotungsten, Tungsten, trioxo-, Tetratungsten undecaoxide, Diketotungsten, Tungsten(VI) oxide, Tungstic acid anhydride, Tungstic anhydride, Yellow tungsten oxide, YTO, CAS 12037-57-9 (W<sub>18</sub>O<sub>49</sub>)

Chemical Identifiers

Linear Formula WO3
Pubchem CID N/A
MDL Number MFCD00049709
EC No. 234-842-7
IUPAC Name Oxygen(2-); tungsten
Beilstein/Reaxys No. N/A
SMILES O=[W](=O)=O
InchI Identifier InChI=1S/3O.W
InchI Key ZNOKGRXACCSDPY-UHFFFAOYSA-N
Chemical Formula
Molecular Weight
Standard InchI
Appearance
Melting Point
Boiling Point
Density

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Elements

See more Tungsten products. Tungsten (atomic symbol: W, atomic number: 74) is a Block D, Group 6, Period 6 element with an atomic weight of 183.84. The number of electrons in each of tungsten's shells is [2, 8, 18, 32, 12, 2] and its electron configuration is [Xe] 4f14 5d4 6s2. Tungsten Bohr ModelThe tungsten atom has a radius of 139 pm and a Van der Waals radius of 210 pm. Tungsten was discovered by Torbern Bergman in 1781 and first isolated by Juan José Elhuyar and Fausto Elhuyar in 1783. In its elemental form, tungsten has a grayish white, lustrous appearance. Elemental TungstenTungsten has the highest melting point of all the metallic elements and a density comparable to that or uranium or gold and about 1.7 times that of lead. Tungsten alloys are often used to make filaments and targets of x-ray tubes. It is found in the minerals scheelite (CaWO4) and wolframite [(Fe,Mn)WO4]. In reference to its density, Tungsten gets its name from the Swedish words tung and sten, meaning heavy stone.