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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ClairY
Los Angeles, US
★★★★★ 5
Finally!
Size: X-Large, Color: All Black D (5-pack)
Finally, comfortable underwear that don’t end up giving me a wedgie. I have a round booty and most cuts of underwear end up shifting as I walk and sit. The hem of the underwear comes right under my cheeks and the lightweight material ensures there’s no panty line and no shifting to where I don’t want them! I’m definitely purchasing more.
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Reviewed in the United States on May 17, 2026
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Amazon Customer
Lexington, US
★★★★★ 3
Ehh
Size: Medium, Color: Multicoloured E-(5-pack)
Very thin, still comfy but very thin material. Super soft though. I've worn and washed and they have held up but I won't be repurchasing bc these are so thin
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Reviewed in the United States on April 14, 2026
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Grma4m&m
Lowell, US
★★★★★ 5
They’re fantastic!!!!
Size: X-Large, Color: Multicoloured E-(5-pack)
My clothing size is 16/18 and XL. Even though Amazon suggested a size XXL, I ordered my normal XL and they fit perfectly. The fabric for this style is 92% bamboo viscose and is amazingly soft and almost silky feeling. I had ordered a different boy short in this brand but they were 80% bamboo viscose and the fabric was significantly heavier. I returned those and ordered these.
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Reviewed in the United States on April 25, 2026
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alizarin crimson
Bozeman, US
★★★★★ 5
Comfortable, breathable, and flattering
Size: Small, Color: Pink/White/Khaki/Blue/Brown
I’m really pleased with this set of cotton women’s boxer shorts. The fabric is genuine cotton and feels lightweight and breathable without feeling flimsy or cheap. They’re comfortable enough to wear all day, especially if you prefer natural fibers. The elastic waistband is soft, comfortable, and also really cute, it doesn’t dig in or feel restrictive at all. The fit is true to size. I usually wear a small in underwear and these fit me perfectly. They feel secure while still looking sexy and relaxed at the same time, which is a great balance. I also really appreciate the earthy color palette, it feels calm, natural, and wearable rather than overly bright or synthetic. Overall, these are well-made, comfortable, and thoughtfully designed, and I’d happily order them again.
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Reviewed in the United States on January 2, 2026
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COCO CHANEL
Louisville, US
★★★★★ 5
Lightweight and Comfortable.
Size: Small, Color: Pink/White/Khaki/Blue/Brown
These cotton boy shorts are really comfortable and soft. The material is breathable and feels nice on the skin, not itchy or tight. The size small fits true to size and stays in place without rolling up. I like the striped design and how they give good coverage while still feeling lightweight. Great for everyday wear and easy to wash. Overall, a solid and comfy underwear set.
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Reviewed in the United States on December 31, 2025

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