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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4.7 ★★★★★
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Verified Purchase
Larisa Lee
Cuba, US
★★★★★ 5
comfortable
Color: Charcoal Dark Grey(flat Sheet Only), Size: King
Comfortable lightweight, soft sheet. Like the color.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 7, 2026
N
Verified Purchase
Nova
Natrona Heights, US
★★★★★ 5
So I’ve purchased these twice
I purchased these sheets twice because I like them that much. I’m really particular about the texture and material of the sheets I use. After trying jersey sheets about 5-6 years ago, I refused to go back to microfiber. They have the feel of a t-shirt, but it’s your bedding. I love the feeling for my pillowcases, too. This brand’s sheets fit my mattress perfectly. My mattress is a queen sized Casper mattress and 11 inches thick. I’m also a restless sleeper. If the sheets don’t have deep enough pockets, the corners become loose and the fitted sheet tries to escape the mattress. These stay perfectly in place no matter how much I move. As a general note, though, since I see this a lot—PLEASE check the thickness of your mattress! Not all sheets have the same pocket depth! If your mattress is 8 inches thick and you’re buying sheets that are for 6 inches of thickness, it’s not going to fit right! If your mattress is 8 inches thick and you’re purchasing sheets that are for 11+ inches of thickness, they’re more than likely going to be too big, but more likely to stay in place if you buy too small. Still, loose sheets tend to bunch on the actual sleep surface and create uncomfortable fabric ridges. Don’t do that to yourself. Buy the right sized sheets for your mattress! For me, these are perfect! I love the colors available. I tend to buy lighter grays and teals for my bed. They survive my restless sleeping and yucky, sticky humidity of northeastern coast summers. The color doesn’t bleed out when washed. They’re such a soft, comfy texture. The other thing about jersey knit sheets is that the top sheet drapes over your body with a bit more weight. Microfiber is lighter and doesn’t give you the ‘completely covered’ feeling that I find I love about the jersey knit sheets. The jersey knit sheets, I find, because of the material weight, naturally sit and slightly conform to the form they are draped upon. Once again, being a restless sleeper, I do not have to worry that my tossing and turning will cause the sheet to attempt escape from my bed and body on its own. But they also do not make me feel additional warmth. I do not like being hot when I sleep. They are perfectly cool on their own or with a light knit blanket on top. They won’t trap in heat that you don’t want them to. If you want to trap heat, add a warmer blanket. They do tend to be a little on the expensive side in comparison to other jersey knit sheets, so I tend to wait for the sales to grab them! But I really, really like this brand.
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Reviewed in the United States on December 28, 2024
B
Verified Purchase
barb.
Cuba, US
★★★★★ 5
High Quality - Great Price
Size: Queen, Color: Blue
Great sheets. They are soft, wash up well, fit as stated. The fabric makes it easier to make the bed. I would recommend to everyone.
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Reviewed in the United States on December 27, 2025
M
Verified Purchase
Melanie
Lowell, US
★★★★★ 5
Maybe a bit short on sides?
Size: King, Color: Blue Chambray
Really soft, but the sides are short for a king size bed. Plenty of length. So I’ve had to turn it sideways. Maybe it got sewn wrong?
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Reviewed in the United States on December 31, 2025
A
Verified Purchase
Amazon Customer
Massapequa, US
★★★★★ 4
Wish the sides were longer
Size: King, Color: Blue Chambray
I love jersey knit sheets. They are comfortable in all temperatures. These do not disappoint particularly for the cost. Unfortunately the top king size sheet is too small, with only just barely enough drop, on the sides. Length wise they are fine.
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Reviewed in the United States on February 5, 2026

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