What is Nano Yellow Tungsten Oxide?

Yellow tungsten oxide (WO3, Nano Yellow Tungsten Oxide) is an oxide of tungsten with a yellow powder appearance. Two different particles of yellow tungsten oxide are different in size and show different colors. When the crystal size is about 1.5um, it appears yellow; when the crystal size is about 15um, it appears green. Although the appearance is different, the characteristics are similar.

Physical Properties Of Nano Yellow Tungsten Oxide:

Physical properties: yellow or bright green, finely divided yellow crystal powder, loose specific gravity 2.3~2.8g/cm3.

Appearance and characteristics: yellow powder, stable at room temperature, the product passes through 80 mesh screen.

Nano Yellow Tungsten Oxide Application:

1. As an important intermediate in tungsten metallurgy industry, yellow tungsten oxide is widely used in metal tungsten powder and tungsten carbide powder, and then used in the production of metal tungsten products.

2. Part of yellow tungsten oxide is used in the production of chemical products, such as tungstate; due to its rich yellow color, it is used as a pigment for ceramics and paint production; it has catalytic properties and is used in petroleum industry catalysts, etc.

3. Fireproof fabrics and gas sensors for industrial X-ray screen phosphor production.

4. It has semiconductor photocatalytic properties and has been extensively studied as a photocatalyst (photocatalyst).

Nano Yellow 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: tungsten-oxide.com

What is Nano Tungstic Acid?

Nano tungstic acid usually refers to nano yellow tungstic acid, an amorphous yellow powder. The properties of tungstic acid in water and acidic solutions are relatively stable, almost insoluble in water, soluble in alkali, slightly soluble in acid, but can react with water. And exist in a certain colloidal form. When tungstic acid is heated to 100°C, it loses a molecule of water and turns into tungsten trioxide. It is almost insoluble in acid, slightly soluble in hot water, and exhibits stable properties at temperatures below 150°C; In strong alkaline solutions, ammonia and hydrofluoric acid.

Chemical formula of nano tungstic acid: H2WO4 or WO3·H2O

Physical Properties Of Nano Tungstic Acid:

Appearance color: light orange-yellow powder, insoluble in water.

Purity: ≥99.9%

Average particle size: 30~50nm

Melting point: 1473℃

Nano Tungstic Acid Application:

Due to its unique properties, tungstic acid was used as the most important and high-purity intermediate compound in the tungsten metallurgical industry in the early days. At present, most of its functions have been replaced by ammonium paratungstate (APT). Raw material of tungsten trioxide; raw material of submicron tungsten powder and some tungsten compounds, used as pigment in yellow glaze, as colorant for yellow ceramics, etc.

Nano Tungstic Acid 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: tungstic-acid.com

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/

What is Sodium Tungstate?

Sodium tungstate is a tungstate of sodium, chemical formula is Na2WO4•2H2O which is prepared from tungsten ores used to manufacture tungsten by reducing.

Application of Sodium Tungstate

It is mainly used as production of tungsten oxides. It is also used as catalyst for epoxidation of alkenes and oxidation of alcohols into aldehydes or ketones.It is also used for treatment of diabetes in animal, in the dye and textile industry,intermediate in preparation of tungsten compounds, fire proofing fabrics & cellulose, alkaloid precipitant.

More details please visit: http://sodium-tungstate.com/english/index.html

What Is Tungsten Hexachloride?

Tungsten hexachloride is a compound of tungsten and chlorine, the English name is tungsten hexachloride, the chemical formula is WCl6, and the molecular weight is 396.61. Under normal circumstances, the content of tungsten is not less than 46%, and the content of chlorine is not less than 53%.

Physical and Chemical Properties of Tungsten Hexachloride:

Appearance is dark blue or blue-purple fine-crystalline powder, easily soluble in carbon disulfide, soluble in ether, ethanol, benzene, carbon tetrachloride, easily decomposed by hot water, and oxidized by oxygen in the air to form tungsten oxychloride or tungsten oxychloride when heated. Tungsten oxide, and WCl6 containing tungsten oxychloride is easily decomposed by water vapor, and is reduced by hydrogen under high temperature conditions to precipitate tungsten powder.

Production Process of Tungsten Hexachloride:

1) Pretreatment of raw materials. The large particle tungsten powder is obtained by screening or sintering, the chlorine gas is purified and preheated at the same time, and the large particle activated carbon is screened for dehydration and deoxidation treatment in a high temperature chlorine atmosphere.

2) Crude tungsten hexachloride. The tungsten powder and chlorine react at the bottom of the chlorination furnace, and the generated tungsten hexachloride and tungsten chloride impurities flow out through the gas outlet in the form of steam.

3) Refining of tungsten hexachloride. The activated carbon is filled in the refining furnace, the steam generated by the chlorination furnace and the purified high-temperature chlorine gas of 5%-20% are refined in the refining furnace, and the tungsten oxychloride and low-valent tungsten chloride in the steam are reduced to tungsten hexachloride to obtain the refined steam.

4) Condensation reception. The refined steam enters the receiver, and the temperature of the cooling water is controlled to obtain high-purity tungsten hexachloride powder, and the exhaust gas is discharged.

5) Exhaust gas treatment. The tail gas is absorbed by the sodium hydroxide solution in the tail gas absorption tank, and the purified tail gas is discharged up to the standard.

Tungsten Hexachloride Application:

Used for tungsten plating by vapor deposition; used to prepare single crystal tungsten wire, conductive layer on glass surface; used as olefin polymerization catalyst; used for tungsten purification and organic synthesis; widely used in agriculture, chemical industry, petroleum catalysis and smart glass and other industries .

Tungsten Hexachloride 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: http://www.tungsten-hexachloride.com/

What is Nano Yellow Tungsten Oxide?

Yellow tungsten oxide (WO3, Nano Yellow Tungsten Oxide) is an oxide of tungsten with a yellow powder appearance. Two different particles of yellow tungsten oxide are different in size and show different colors. When the crystal size is about 1.5um, it appears yellow; when the crystal size is about 15um, it appears green. Although the appearance is different, the characteristics are similar.

Physical Properties Of Nano Yellow Tungsten Oxide:

Physical properties: yellow or bright green, finely divided yellow crystal powder, loose specific gravity 2.3~2.8g/cm3.

Appearance and characteristics: yellow powder, stable at room temperature, the product passes through 80 mesh screen.

Nano Yellow Tungsten Oxide Application:

1. As an important intermediate in tungsten metallurgy industry, yellow tungsten oxide is widely used in metal tungsten powder and tungsten carbide powder, and then used in the production of metal tungsten products.

2. Part of yellow tungsten oxide is used in the production of chemical products, such as tungstate; due to its rich yellow color, it is used as a pigment for ceramics and paint production; it has catalytic properties and is used in petroleum industry catalysts, etc.

3. Fireproof fabrics and gas sensors for industrial X-ray screen phosphor production.

4. It has semiconductor photocatalytic properties and has been extensively studied as a photocatalyst (photocatalyst).

Nano Yellow 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: tungsten-oxide.com

What is Nano Tungstic Acid?

Nano tungstic acid usually refers to nano yellow tungstic acid, an amorphous yellow powder. The properties of tungstic acid in water and acidic solutions are relatively stable, almost insoluble in water, soluble in alkali, slightly soluble in acid, but can react with water. And exist in a certain colloidal form. When tungstic acid is heated to 100°C, it loses a molecule of water and turns into tungsten trioxide. It is almost insoluble in acid, slightly soluble in hot water, and exhibits stable properties at temperatures below 150°C; In strong alkaline solutions, ammonia and hydrofluoric acid.

Chemical formula of nano tungstic acid: H2WO4 or WO3·H2O

Physical Properties Of Nano Tungstic Acid:

Appearance color: light orange-yellow powder, insoluble in water.

Purity: ≥99.9%

Average particle size: 30~50nm

Melting point: 1473℃

Nano Tungstic Acid Application:

Due to its unique properties, tungstic acid was used as the most important and high-purity intermediate compound in the tungsten metallurgical industry in the early days. At present, most of its functions have been replaced by ammonium paratungstate (APT). Raw material of tungsten trioxide; raw material of submicron tungsten powder and some tungsten compounds, used as pigment in yellow glaze, as colorant for yellow ceramics, etc.

Nano Tungstic Acid 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: tungstic-acid.com

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/