SKU: 7621890593

Blue tungsten oxide(WO2.9)

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Description

Blue tungsten oxide(WO2.9)Product Name Name: WBlue tungsten oxide(WO2. 9) Product Overview WO2. 9, also known as blue tungsten oxide or blue tungsten, is a compound containing a mixed valence state of tungsten (VI) and tungsten (V). The chemical formula of WO2. 9 indicates that the atomic ratio of tungsten (W) to oxygen (O) is about 2: 9, but in fact it represents a mixed oxide containing different valent states of tungsten. This compound is formed by the combination of

Product Name

Name:WBlue tungsten oxide(WO2.9)

Product Overview

WO2.9, also known as blue tungsten oxide or blue tungsten, is a compound containing a mixed valence state of tungsten (VI) and tungsten (V). The chemical formula of WO2.9 indicates that the atomic ratio of tungsten (W) to oxygen (O) is about 2:9, but in fact it represents a mixed oxide containing different valent states of tungsten. This compound is formed by the combination of tungsten with oxygen in two valence states, W+6 and W+5, so its chemical formula can also be considered as an average composition used to describe its overall chemical properties. With its high chemical activity, WO2.9 can participate in various chemical reactions. Its reduction and oxidation properties are relatively weak, but the specific performance depends on the reaction conditions and the nature of the reactants. Moreover, WO2.9 also has good photochromic and electrochromic effects, and its color may change with different factors such as particle size or illumination.

Technical Parameter

Size:0-300nm

Purity:~99%

Appearance:Dark blue powder

Product Features

Catalytic activity and selectivity: WO2.9 has excellent catalytic activity and selectivity, and is suitable for various catalytic reactions such as hydrogenation, dehydrogenation, oxidation and reduction. In the fields of petrochemical industry, fine chemicals and environmental protection, WO2.9 as a catalyst can significantly improve the reaction efficiency and product quality stability: the stability of nanometer vanadium dioxide is relatively high, thanks to the special structure of its surface ion ripples, so that it can maintain good performance in a variety of environments.

Optical properties: WO2.9 has a unique blue luster, which can be used as an additive to materials such as optical glass, optical thin films and optical coatings to improve the optical properties and stability of these materials. It can also be used to prepare transparent heat insulation coatings and solar photosensitive films to meet the needs of optical materials in different fields.

Application Fields

Catalytic reaction: WO2.9 has excellent catalytic activity and selectivity, and can be used as a catalyst for hydrogenation, dehydrogenation, oxidation and reduction reactions to improve the reaction efficiency and product quality.

Lithium ion battery: WO2.9 can be used as a cathode material for lithium ion battery to improve the capacity and cycle performance of the battery.

Solar cells: WO2.9 can also be used as a photoelectric conversion material for solar cells to improve the conversion efficiency and stability of solar cells.

Optical field: WO2.9 has a unique blue luster and optical performance, which can be used as an additive for optical glass, optical film and optical coating materials to improve the optical performance and stability of materials.

Coating material: WO2.9 can be used as an additive for anticorrosion coating and wear resistance coating to improve the corrosion resistance and wear resistance of the coating.

Related Information

Please e-mail for the detailed characterization data.

E-mail:[email protected]

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SKU: 7621890593

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Molly
Los Angeles, US
★★★★★ 1
Do not recommend
Size: Standard / 2 Packs, Color: White/Soft
At an Airbnb in Marine CA, these pillows were on my bed. They were so wonderful, I took a picture of the label so I could order them for myself. After a few weeks, the feathers began working out of casing and would poke my head. I then put them in two pillowcases thinking that would make a difference- nope. When I removed the outer pillowcase to launder, there were 69-80 little feathers between the two layers. I went back to my old pillows and although they aren’t as great as down pillows, I don’t miss being poked and finding little feathers between the pillowcases and in my bedroom. Four months later, I am still finding a few random feathers in my bedroom.
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Reviewed in the United States on February 11, 2026
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Osmary Rodriguez frometa
Omaha, US
★★★★★ 5
Very Comfortable and Good Quality
Size: Queen / 2 Packs, Color: White/Soft
These pillows are very comfortable and soft, but still give good support for sleeping. The material feels high quality and the size is perfect for my bed. I’ve been sleeping much better since I started using them. I would definitely recommend them.
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Reviewed in the United States on March 13, 2026
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HHH
Houston, US
★★★★★ 3
Nice but smell when you open them
Size: Queen / 2 Packs, Color: White/Soft
These look nice and confirm the materials (no plastics no poly) but they do smell a bit - I am going to let them air out for a day and update this review if the smell goes away
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Reviewed in the United States on March 22, 2026
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Kayce Tecumseh
Natrona Heights, US
★★★★★ 5
Super comfy pillows
Size: King / 2 Packs, Color: White/Soft
I ordered these pillows for my bed and they are so big and fluffy. So comfortable and great price. So far they keep their shape and offer great support.
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Reviewed in the United States on April 25, 2026
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Yisenia Medina Pérez
Port Orchard, US
★★★★★ 5
Hotel Grand Set of 2 pillows
Size: King
Excellent quality and comfort. The pillows are soft but with the perfect support, ideal for any sleeping position. They feel fresh thanks to the cotton cover and keep their shape very well. Without a doubt, a great purchase for a hotel-like break at home.
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Reviewed in the United States on April 3, 2026

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