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232785

Sigma-Aldrich

Tungsten(VI) oxide

powder, ≤25 μm, ≥99% trace metals basis

Synonym(s):

Tungstic anhydride

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About This Item

Linear Formula:
WO3
CAS Number:
Molecular Weight:
231.84
EC Number:
MDL number:
UNSPSC Code:
12352303
PubChem Substance ID:
NACRES:
NA.23
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Quality Level

Assay

≥99% trace metals basis

form

powder

particle size

≤25 μm

density

7.16 g/mL at 25 °C (lit.)

SMILES string

O=[W](=O)=O

InChI

1S/3O.W

InChI key

ZNOKGRXACCSDPY-UHFFFAOYSA-N

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1 of 4

This Item
608009653640597228
isotopic purity

97 atom % 13C, 95 atom % 15N

isotopic purity

≥96 atom % 13C, ≥95 atom % 15N

isotopic purity

98 atom % 13C, 98 atom % 15N

isotopic purity

98 atom % 13C, 98 atom % 15N

technique(s)

bio NMR: suitable

technique(s)

bio NMR: suitable

technique(s)

bio NMR: suitable

technique(s)

bio NMR: suitable

mass shift

M+9

mass shift

M+9

mass shift

M+6

mass shift

M+7

assay

95% (CP)

assay

95% (CP)

assay

97% (CP)

assay

98% (CP)

form

powder

form

solid

form

solid

form

solid

storage temp.

−20°C

storage temp.

-

storage temp.

2-8°C

storage temp.

2-8°C

General description

Tungsten(VI) oxide, also known as tungsten trioxide, is a chemical compound with the formula WO3. Our material is a yellow crystalline solid. It is a versatile material with applications in electrochromic devices, sensors, photocatalysis, energy storage, and various other fields in material science. WO3 is used in gas and humidity sensors due to its sensitivity to various gases. It is also used as a starting material for the synthesis of tungstates, which have applications in x-ray screen phosphors and mineral separation.

Application


  • Tuning the Photo-Luminescence Properties of WO(3) Layers by the Adjustment of Layer Formation Conditions.: This research explores the photo-luminescence properties of tungsten(VI) oxide (WO3) layers and how they can be adjusted by varying the layer formation conditions. Such tuning of properties can have significant applications in energy storage and battery materials due to the enhanced electrochemical properties that can be achieved (Petruleviciene et al., 2020).

  • Decomposition of Formic Acid Using Tungsten(VI) Oxide Supported AgPd Nanoparticles.: This study investigates the catalytic properties of tungsten(VI) oxide (WO3) supported silver-palladium (AgPd) nanoparticles in the decomposition of formic acid. The findings highlight the potential industrial applications of WO3 in chemical reactions and energy storage systems (Akbayrak, 2019).


Storage Class Code

13 - Non Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Debromination of a-Bromoketones and vic-Dibromides Using a NaI/Na2SO3 System.
Lee SH, et al.
Bull. Korean Chem. Soc., 25(11), 1723-1723 (2004)
3-Aryl-1, 2-dihydroquinoxalines.
Figueras J.
The Journal of Organic Chemistry, 31(3), 803-806 (1966)
Sarwat Jahan et al.
Pakistan journal of pharmaceutical sciences, 26(3), 517-523 (2013-04-30)
Synthesis of novel phenacyl derivatives of alkyl piperidine as cytotoxic agents via simple and single step reaction procedure is going to be reported here. Twelve new compounds were successfully synthesized in moderate yield and in solid form. Their synthesis was

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