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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4.2 ★★★★★
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Verified Purchase
Bee2isme
Carnegie, US
★★★★★ 1
Not a strong toy for chewers.
Color: Yellow
Not quite as strong as its description. My dog chewed off its foot within the first 10 minutes . I expected it to be stronger because it’s made of Kevlar material but it’s not that durable. Save your money it is far from being durable / indestructible.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 5, 2025
T
Tonia Robinson
Draper, US
★★★★★ 5
Leave a toy for the dog when going to work, and no housebreaking when coming back
Color: Purple-Blue, Size: 2pcs
The dog is quite clingy. Every time it sees me put on my shoes to go out, it gets nervous. Since having this bear around, when it goes out, its attention is all on the toys, and when it comes back home, its mood has become much more stable.
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Reviewed in the United States on May 26, 2026
T
Tonia Robinson
San Leandro, US
★★★★★ 5
Leave a toy for the dog when going to work, and no housebreaking when coming back
Color: Purple-Blue, Size: 2pcs
The dog is quite clingy. Every time it sees me put on my shoes to go out, it gets nervous. Since having this bear around, when it goes out, its attention is all on the toys, and when it comes back home, its mood has become much more stable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
A
Verified Purchase
A.pappy
Louisville, US
★★★★★ 5
Keeps my dog busy and actually holds up
This jigsaw-style dog toy has been a game changer for keeping my dog entertained. The design is super versatile—you can spread peanut butter (or yogurt, wet food, etc.) into the grooves, and it keeps them busy licking for a long time. What I like most is that it’s not just a lick mat—it’s also a durable chew toy. The material feels strong and holds up really well, even with a dog that usually destroys toys pretty quickly. Toys made from rubber or similar materials tend to last longer and are safer for chewing compared to softer options. The grooves and compartments make it a little more challenging (in a good way), so it takes my dog longer to get through the treats. I’ve even tried freezing peanut butter inside, and that keeps them occupied even longer. Lick-style toys like this are great for slowing dogs down and keeping them calm and engaged. It’s also been really helpful during times when I need a distraction—like when I’m busy, cleaning, or even during grooming. Pros: • Durable and holds up to chewing • Can use peanut butter, yogurt, or other soft treats • Keeps dogs busy for a long time • Helps with boredom and anxiety • Freezable for longer use Cons: • Can get messy depending on what you put in it
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Reviewed in the United States on April 2, 2026
M
Verified Purchase
Michelle
Cuba, US
★★★★★ 5
Hubie gives it two paws up !!
Hubie loves this he’s a Great Dane and a busy chewer.
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Reviewed in the United States on April 30, 2026

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