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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Vicki Lynette stewart
Dallas, US
★★★★★ 5
Good buy
Color: Green+Black, Size: Case for iPad (A16) 11th/10th Generation 11/10.9''
Very nice and durable. I use it for his aac device
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
B
Verified Purchase
bernardo rosales
Phoenix, US
★★★★★ 4
Great Case, Just Minor Issues
Color: Black, Size: Case for iPad (A16) 11th/10th Generation 11/10.9''
This case is an overall good case, in the sense that it does a good job protecting the tablet. It covers the entire screen with a plastic screen, which I personally like and don’t mind. It also had a kick stand and sting to hang it, which is a must for kids. My kid has not broken his tablet since getting this case, BUT he did not last very long with it on. The plastic screen protector and the front piece, made it super difficult for him to pull down his control center from the top right corner. This annoyed him so much that he ended up taking the whole case off and eventually losing it. If they could make the plastic sheet more fitted to the screen so that the issue is fixed I would give 5 stars.
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Reviewed in the United States on November 20, 2025
R
Verified Purchase
Ravi M, Bloomfield NJ
Lexington, US
★★★★★ 5
Great value to protect your ipad.
Color: Black, Size: Case for iPad (A16) 11th/10th Generation 11/10.9''
Nicely made and thought out product. Fits perfectly and comes with everything you need. Easy to install, looks very sturdy. The shoulder strap it comes with to carry it around makes it even more versatile.
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Reviewed in the United States on April 22, 2026
C
Verified Purchase
Carrie A. Shaw
Alexandria, US
★★★★★ 5
Great for portability and Many uses
Color: Black, Size: Case for iPad (A16) 11th/10th Generation 11/10.9'', Color: Black, Size: Case for iPad (A16) 11th/10th Generation 11/10.9''
I use my iPad for work!! This case is a fantastic addition - easy to use when I’m on the couch or in the Office. Stand is easily changed from vertical to horizontal - Velcro handle can change large or small. My stylus also attached to the back so everything is ready on the GO
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Reviewed in the United States on May 14, 2026
Y
Verified Purchase
Yeniev
Natrona Heights, US
★★★★★ 5
A Tough Everyday Shield That Turns an iPad Into a Travel-Ready Tablet
Color: Black, Size: Case for iPad (A16) 11th/10th Generation 11/10.9''
I’m very impressed with this protective iPad case. It has a strong, rugged design that makes the tablet feel much safer for everyday use, especially for kids, travel, work, or anyone who needs extra protection. The black design looks modern, durable, and professional without being too bulky in appearance. What I like most is how complete and practical it is. The built-in stand makes it easy to watch videos, study, read, or use the iPad hands-free, and the hand strap adds extra comfort when carrying or holding it. The included shoulder strap is also a great bonus because it makes the case even more convenient for moving around. The raised edges and heavy-duty design give great peace of mind against drops, scratches, and daily bumps. Overall, this is a very useful and reliable iPad case that combines protection, comfort, and functionality in one. I’m very happy with it and would definitely recommend it.
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Reviewed in the United States on June 10, 2026

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