What Is Purple Tungsten Oxide?

Purple tungsten oxide (WO2.72 or W18O49, Purple Tungsten Oxide or Violet Tungsten Oxide, VTO for short) is a kind of tungsten oxide, which is a purple finely divided crystal powder with a molecular weight of 227.36.

Physical And Chemical Properties Of Purple Tungsten Oxide:

Appearance: purple or blue-purple broken crystal powder

Solubility: Insoluble in water, alcohol and most acids, soluble in ammonia and lye.

Preparation method of purple tungsten oxide:

The preparation of violet tungsten oxide is usually produced by controlling certain reducing conditions using ammonium paratungstate (APT), tungstic acid or tungsten trioxide (WO3) as raw materials. The preparation methods of violet tungsten usually include APT wet hydrogen direct reduction method, hydrogen tungstate reduction method, and APT mild reduction method.

Uses of purple tungsten oxide:

1. Preparation of tungsten powder, especially the preparation of nanometer, submicrometer or ultrafine tungsten powder.

2. Applied to gas sensor, showing good gas sensitivity to nitrogen dioxide at room temperature.

3. Preparation of tungsten carbide powder and ultrafine WC-Co powder.

4. Raw materials for the production of glass thermal insulation coating dispersions.

5. Additives for cathode materials of lithium batteries.

Purple Tungsten Oxide Packaging:

25kg or 50kg net weight, packed in double-layer polyethylene plastic bags inside, and plastic drums/iron drums as outer packaging; vacuum packaging or other net weight requirements, or the order weight is less than the standard packaging specifications, customized according to the actual situation; conventional packaging is Product name + batch number and other neutral text printing//writing, if you need personalized content, you can also customize.

More product details please visit: violet-tungsten-oxide.com

What is Cesium Tungsten Bronze?

Cesium tungsten bronze, also known as cesium tungsten oxide, is an inorganic nanomaterial with good near-infrared absorption effect. 780nm) new functional materials with high transmittance.

English name: Cesium Tungsten Bronze

Molecular formula: Cs0.33WO3

Molecular weight: 276

CAS number: 189619-69-0

Physical and Chemical Properties of Cesium Tungsten Bronze:

The molecular structure of cesium tungsten bronze is oxygen octahedral structure, the purity is higher than 99.9%, the bulk density is 1.5g/ml, the particle size is relatively uniform, the primary particle size is about 30nm, the specific surface area is about 50m2/g, and it is not easy to agglomerate, non-toxic , Non-radioactive features.

The Production Method of Cesium Tungsten Bronze:

Method 1: Preparation of Cs0.33WO3 from Na2WO4•2H2O and Cs2CO3

1. Using sodium tungstate Na2WO4•2H2O as raw material, prepare a sodium tungstate solution with a concentration of 0.5 mol/L.

2. Obtain tungstic acid sol by cation resin exchange, add citric acid (analytical grade) solution with a concentration of 1 mol/L or 2 mol/L and a cesium carbonate Cs2CO3 (analytical grade) solution with a concentration of 0.3 mol/L, and stir evenly , to obtain the precursor for the hydrothermal reaction.

3. Put the precursor solution into the autoclave, react at 190 ℃ for 3 days, and then go through ultrasonic washing, alcohol washing, centrifugation and drying to finally obtain Cs0.33WO3 powder.

Cesium Tungsten Bronze Application:

1. Transparent thermal insulation coatings and films.

2. Thermal insulation chemical fiber, textile fiber and other high-performance thermal insulation media.

3. Transparent heat insulation window film, building coating.

4. Auto film, PVB heat insulation laminated film, laser marking, laser welding, photothermal diagnosis and treatment, infrared filter.

Cesium Tungsten Bronze Packaging:

25kg or 50kg net weight, packed in double-layer polyethylene plastic bags inside, and plastic drums/iron drums as outer packaging; vacuum packaging or other net weight requirements, or the order weight is less than the standard packaging specifications, customized according to the actual situation; conventional packaging is Product name + batch number and other neutral text printing//writing, if you need personalized content, you can also customize.

For more information, please visit: http://cesium-tungsten-bronze.com/

Tungsten alloy screws have the advantages of small size and high weight, which are suitable for fastening parts of some precision components, can greatly reduce the volume and play the role of counterweight. Tungsten alloy is easy to process and can be processed for screws of different sizes.
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The tungsten alloy counterweight crankshaft is used to balance the rotational inertia force and moment generated by the connecting rod big end, connecting rod journal and crank, so that the engine crankshaft runs smoothly. Some counterweight crankshafts are made integrally with the crankshaft, which is an extension of the crankshaft, and some are separately made parts, which are fixed on the crank with bolts.

Tungsten alloy has the advantages of small size, high density, high hardness, high wear resistance, strong corrosion resistance, strong impact resistance, high melting point, high temperature resistance, environmental protection, etc. Tungsten alloy is definitely a suitable crankshaft material.

Usually tungsten alloy parts are often used as counterweights for machines, boats, airplanes, yachts, spaceships, and other places that require small size and heavy weight. Tungsten alloys are widely used in high-performance engines (cars, racing cars, motorcycles, trucks) , yachts, etc.).

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Chinatungsten Online can customize the grade and size of tungsten alloy sheet for various uses, the most regular grade is 90%wnicu.

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Tungsten alloy block can be made into weapon parts, molds and counterweights, such as speedboat counterweights, vehicle counterweights, aircraft counterweights, helicopter counterweights, marine counterweights and tank counterweights, etc.

Dies are mainly used for forming techniques in material processing, including pressing the workpiece with the die, thereby reducing the cross-section and increasing the length. Due to its high melting point and good corrosion resistance, tungsten alloy block is the best raw material for making molds.

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Tungsten alloy ring is generally used in industrial counterweights, or shields for medical devices. The thickness of the ring can be as thin as 2mm, but because it is too thin, it is prone to cracking during processing, so the rejection rate is high. The thinner the wall thickness, the higher the price.

For more information about tungsten alloy products, please visit: tungsten-alloy.com

Tungsten alloy medical syringe shield can be used for collimators, nuclear radiation shields, ray blockers, PET syringe shields, protective canisters, radioisotope containers, DNA (FDG) containers, multi-leaf collimators, etc. .

The advantages of tungsten alloy materials:

1.High radiation mask absorption capacity

2.Under the same radiation mask performance, the tungsten alloy mask is thinner than the lead material

3.Non-toxic, environmentally friendly materials

4.Good machinability

5.Hard and wear-resistant, no need for coating protection

6.Easy to disinfect and sterilize

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Tungsten alloy military cylinder has excellent properties of high density and high strength, and is an ideal material for military products. The commonly used content is 93%~97% WNIFE, and trace elements are added to improve its crushability, tensile strength and bending strength. . In addition, tungsten alloy is non-toxic and non-polluting, and tungsten alloy military squares are widely used in military fields such as fragmentation rings.

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Tungsten alloy rod has many excellent characteristics such as high density, high melting point, small size, extremely high wear resistance, high hardness, high tensile strength, high elongation, high temperature resistance, etc. It is widely used in industrial fields such as aerospace Counterweights, medical masks and processed parts such as molds and welding rods.

For more information about tungsten alloy products, please visit: http://www.tungsten-alloy.com