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Tungsten trioxide

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Identification
Molecular formula
WO3
CAS number
1314-35-8
IUPAC name
trioxotungsten
State
State

At room temperature, tungsten trioxide is in a solid state.

Melting point (Celsius)
1 473.00
Melting point (Kelvin)
1 746.00
Boiling point (Celsius)
1 700.00
Boiling point (Kelvin)
1 973.00
General information
Molecular weight
231.84g/mol
Molar mass
231.8400g/mol
Density
7.1600g/cm3
Appearence

Tungsten trioxide is a yellow crystalline solid. It can also appear as a fine yellow powder. It is insoluble in water.

Comment on solubility

Solubility of Trioxotungsten

The solubility of trioxotungsten, with the chemical formula WO3, is an intriguing topic given its unique properties. Generally, trioxotungsten is known to exhibit low solubility in water and most organic solvents. This limited solubility is attributed to its strong ionic character and crystalline structure.

Here are some insights into its solubility behavior:

  • Water Solubility: WO3 is poorly soluble in water, which means that only a small amount can dissolve at room temperature.
  • Acidic Solutions: Trioxotungsten can show a degree of solubility in strong acids, particularly in hydrochloric acid, where it forms soluble tungsten complexes.
  • Temperature Dependency: As with many substances, temperature can affect solubility, but for trioxotungsten, the increase is not significantly pronounced.
  • Solvent Interaction: It is more likely to dissolve in specific solvents under certain conditions, highlighting the importance of solvent choice in experimental applications.

In summary, while trioxotungsten's solubility in water is quite limited, its interaction with acids and certain solvents reveals its potential utility in various chemical applications. Understanding these solubility characteristics is crucial for effectively utilizing WO3 in research and industrial processes.

Interesting facts

Interesting Facts about Trioxotungsten

Trioxotungsten is a fascinating chemical compound belonging to the family of tungsten oxides, where tungsten serves as a crucial transition metal. This compound is especially intriguing due to its unique properties and diverse applications in various fields of science and technology.

1. Chemical Structure and Properties

  • Coordination Complex: Trioxotungsten features a unique oxidation state that allows it to form complex structures. This stability is essential for its function in various reactions.
  • Versatile Catalyst: It acts as an excellent catalyst in several reactions, particularly in the fields of organic synthesis and materials science, showcasing its potential in sustainable chemistry.
  • Human Health and Environment: Due to tungsten’s low toxicity compared to other heavy metals, trioxotungsten is investigated for uses in biomedical applications, such as drug delivery.

2. Historical Context

Discovered in the early 20th century, trioxotungsten has captured the interest of chemists due to its complex formation and intriguing reactivity. Its development is closely tied to advances in understanding transition metal chemistry, and it has paved the way for further explorations into tungsten-based compounds.

3. Applications

  • Photocatalysis: Trioxotungsten is used as a photocatalyst for various chemical reactions, especially those involving the degradation of pollutants.
  • Electrochemistry: It plays a significant role in electrochemical applications, such as batteries and fuel cells, enhancing energy storage capabilities.
  • Research and Development: Ongoing studies are assessing its potential impact on nanotechnology and material sciences, indicating a promising future.

In summary, trioxotungsten is more than just a chemical compound; it represents the intersection of chemistry with innovation and sustainability. Its adaptability in both functional applications and research makes it a noteworthy subject in the study of transition metals.

Synonyms
TUNGSTEN TRIOXIDE
1314-35-8
Tungsten(VI) oxide
Tungsten oxide (WO3)
Tungstic oxide
Tungstic anhydride
Tungsten Blue
Tungstic acid anhydride
Wolframic acid, anhydride
HSDB 5800
EINECS 215-231-4
WO3 cpd
CI 77901
C.I. 77901
DTXSID7032262
EC 215-231-4
940E10M08M
TUNGSTEN OXIDE [WO3]
DTXCID5012262
DTXCID501079320
215-231-4
254-413-8
dtxsid70892257
ec 254-413-8
einecs 254-413-8
tungsten oxide
tungsten trioxide [hsdb]
tungsten trioxide [mi]
trioxotungsten
MFCD00011466
Cobalt Foil
UNII-940E10M08M
Tungsten Oxide Nanorods
Tungsten Oxide nanowire
Tungsten Oxide Nanopowder
Tungsten Dioxide Nanowires
Tungsten Trioxide Nanopowder
Tungsten(VI) Oxide Nanowires
Tungsten(VI) oxide, Puratronic?
Tungsten trioxide powder 325 mesh
Tungsten(VI) oxide, 1-5 microns
Tungsten Oxide Powder, 99+% Nano
AKOS024256456
Tungsten oxide nanopowder (<100 nm)
CS-0198133
NS00093612
Tungsten(VI) oxide, powder, puriss., 99.9%
Q417406
Tungsten(VI) oxide, powder, 99.995% trace metals basis
Tungsten(VI) oxide, sintered lumps (99.99%-W) PURATREM
Tungsten(VI) oxide, nanopowder, <100 nm particle size (TEM)
Tungsten(VI) oxide, nanowires, diam. x L ~50 nm x 10 mum
Tungsten(VI) oxide, powder, <=25 mum, >=99% trace metals basis