Skip to Content
Merck
All Photos(2)

Key Documents

View All Documentation

550086

Sigma-Aldrich

Tungsten(VI) oxide

nanopowder, <100 nm particle size (TEM)

Synonym(s):

Tungstic anhydride

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

Linear Formula:
WO3
CAS Number:
1314-35-8
Molecular Weight:
231.84
EC Number:
215-231-4
MDL number:
MFCD00011466
UNSPSC Code:
12352302
PubChem Substance ID:
24879090
NACRES:
NA.23

form

nanopowder

Quality Level

100

particle size

<100 nm (TEM)

density

7.16 g/mL at 25 °C (lit.)

SMILES string

O=[W](=O)=O

InChI

1S/3O.W

InChI key

ZNOKGRXACCSDPY-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

General description

Tungsten oxide (WO3) nanopowder is a metallic powder that can be prepared by the calcination of ammonium paratungstate (APT) in the temperature range of 560°C and 850°C. It can be produced by a variety of techniques, such as electrodeposition, sputtering, milling, and chemical processes.

Application

WO3 can be used for a variety of applications, such as electronics, optics, gas sensors and elecctrochromism.

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCX0223
MKCS9702
0000246212
MKCR2040
MKCP5978

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

?Writing-Reading-Erasing? on tungsten oxide films using the scanning electrochemical microscope
Turyan I, et al.
Advanced Materials, 12(5), 330-333 (2000)
A thin-film sensing element for ozone, humidity and temperature
Qu W and Wlodarski W
Sensors and Actuators B, Chemical, 64(1-3), 42-48 (2000)
Thermal effects associated with the Raman spectroscopy of WO3 gas-sensor materials.
Garcia-Sanchez RF, et al.
The Journal of Physical Chemistry A, 117(50), 13825-13831 (2013)
Structure and electronic properties of solid acids based on tungsten oxide nanostructures
Barton DG, et al.
The Journal of Physical Chemistry B, 103(4), 630-640 (1999)
Chemical vapor synthesis (CVS) of tungsten nanopowder in a thermal plasma reactor
Ryu T, et al.
International Journal of Refractory Metals & Hard Materials, 27(1), 149-154 (2009)
View All Related Papers

Articles

Molybdenum Disulfide: Hydrogen Evolution

Catalytic water splitting produces hydrogen crucial for renewable energy, petroleum refining, and chemical industry applications like methanol production.

Molybdenum Disulfide: Hydrogen Evolution

Catalytic water splitting produces hydrogen crucial for renewable energy, petroleum refining, and chemical industry applications like methanol production.

Molybdenum Disulfide: Hydrogen Evolution

Catalytic water splitting produces hydrogen crucial for renewable energy, petroleum refining, and chemical industry applications like methanol production.

Molybdenum Disulfide: Hydrogen Evolution

Catalytic water splitting produces hydrogen crucial for renewable energy, petroleum refining, and chemical industry applications like methanol production.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service