Chemical Reagent Tungsten Oxide

• Brand: leji

• Packaging: Bag/Drum

• Supply Ability: 8000kg

• place of origin: China

• classification: General Reagents

Tungsten trioxide is a powder metallurgy raw material for the production of cemented carbide and tungsten products. According to the national standard (GB/T 3457-1998), it is divided into two types, namely tungsten trioxide (referred to as yellow tungsten), the molecular formula is WO3, and blue tungsten oxide...

99.5% high purity tungsten oxide

• Brand: leji

• Packaging: Bag/Drum

• Supply Ability: 8000kg

• place of origin: China

• classification: General Reagents

Tungsten trioxide is a light yellow triclinic powder crystal. When the temperature is higher than 740 ℃, it transforms into an orange tetragonal crystal, and returns to its original state after cooling. It is stable in air, the melting point is 1473℃, the boiling point is higher than 1750℃, and the relative density is...

Chemical Reagent Tungsten Oxide Spot

• Brand: leji

• Packaging: Bag/Drum

• Supply Ability: 8000kg

• place of origin: China

• classification: General Reagents

Part of tungsten oxide is used in the production of chemical products, such as paints and coatings, catalysts in the petroleum industry, etc.; but tungsten oxide is an intermediate product, and a large amount of tungsten oxide is used in metal tungsten powder and tungsten carbide powder, and then used in the...

Ammonium tungstate yellow powder

• Brand: leji

• Packaging: Bag/Drum

• Supply Ability: 8000kg

• place of origin: China

• classification: General Reagents

Tungsten oxide is used for many purposes in daily life. It is often used in industrial X-ray screen phosphors and fire-resistant fabrics to make tungstate. Due to its rich yellow element, tungsten oxide is also used as a pigment in ceramics and paints. Tungsten trioxide has been employed in the production of...

Specializing in the production of ferrotungsten

• Brand: leji

• Packaging: Bag/Drum

• Supply Ability: 8000kg

• place of origin: China

• purity: High purity

Ferro-tungsten iron alloy series (tungsten content: 70%-80%) is an alloy composed of tungsten and iron, which is used as an alloy additive for steelmaking. Commonly used ferrotungsten contains 70% tungsten and 80% tungsten. Ferrotungsten is prepared from wolframite by carbon reduction in an electric furnace. Mainly...

Supply pure femo 60 iron tungsten

• Brand: leji

• Packaging: Bag/Drum

• Supply Ability: 8000kg

• place of origin: China

• purity: High purity

Iron tungsten is smelted by electric furnace. Due to its high melting point, it cannot be released in liquid state, so it is produced by agglomeration method or iron extraction method. Before the 1930s, a small (100-500 kVA) single-phase electric arc furnace was generally used for agglomeration smelting. Later, a...

Specializing in the production of tungsten powder

• Brand: leji

• Packaging: Bag/Drum

• Supply Ability: 8000kg

• place of origin: China

• purity: High purity

In addition to certain requirements for the impurity content of tungsten powder, the oxygen content should be controlled within a certain range. The particle size of commonly used tungsten powder is generally 2-10 μm in Fisher’s average particle size. The tungsten powder is in the shape of polygonal particles. In...

Low carbon tungsten powder for steelmaking

• Brand: leji

• Packaging: Bag/Drum

• Supply Ability: 8000kg

• place of origin: China

• purity: High purity

The quality of tungsten powder directly determines the quality and alloy properties of tungsten carbide (WC). The classification of tungsten powder can effectively change the properties of the powder, solve the problem of coarse and fine powder, and reduce the difference between the minimum particle size, the maximum...

Specializing in the production of tungsten rods

• Brand: leji

• Packaging: Bag/Drum

• Supply Ability: 8000kg

• place of origin: China

• purity: High purity

Tungsten bars include tungsten rods, tungsten steel rods, sintered tungsten rods, mainly used for forging into material components, knives and warheads, light bulb tungsten wires, electrical contacts and thermal conductors, crankshafts and cylinder tungsten wire barrels, heat-resistant steel Various ingredients. Doped...

Specializing in the production of tungsten particles

• Brand: leji

• Packaging: Bag/Drum

• Supply Ability: 8000kg

• place of origin: China

• purity: High purity

Tungsten is a non-ferrous metal. Usually people divide metals into two categories according to their color and properties: ferrous metals and non-ferrous metals. Ferrous metals mainly refer to iron, manganese, chromium and their alloys, such as steel, pig iron, iron alloys, cast iron, etc. Metals other than ferrous...

Supply pure femo 60 tungsten particles

• Brand: leji

• Packaging: Bag/Drum

• Supply Ability: 8000kg

• place of origin: China

• purity: High purity

Tungsten is the refractory metal with the highest melting point. Generally, metals with a melting point higher than 1650 °C and a certain amount of reserves and metals with a melting point higher than the melting point of zirconium (1852 °C) are called refractory metals. Typical refractory metals are tungsten,...

Low price industrial tungsten carbide scrap

• Brand: leji

• Packaging: Bag/Drum

• Supply Ability: 8000kg

• place of origin: China

• purity: High purity

Tungsten is a rare high melting point metal, which can improve the high temperature hardness of steel. Tungsten is a silver-white metal with a shape similar to steel. Tungsten has a high melting point, low vapor pressure, and low evaporation rate. The chemical properties of tungsten are very stable. It does not react...

Chemical reagent Ammonium metatungstate

• Brand: leji

• Packaging: Bag/Drum

• Supply Ability: 8000kg

• place of origin: China

• classification: General Reagents

Ammonium metatungstate is an inorganic compound with the molecular formula H28N6O41W12, which is white crystalline powder or slightly yellow. Ammonium metatungstate is used to make metal tungsten, alloy steel, fireproof fabric, etc., and used in the ceramic industry. Company Profile Jiangsu Leiji Metal Materials Co.,...

99.5% high purity ammonium metatungstate

• Brand: leji

• Packaging: Bag/Drum

• Supply Ability: 8000kg

• place of origin: China

• classification: General Reagents

Ammonium metatungstate is water-soluble white crystalline powder or slightly yellow. Ammonium metatungstate is soluble in water, and ammonium paratungstate is slightly soluble in water, which is the obvious difference between ammonium metatungstate and ammonium paratungstate. Ammonium metatungstate is also used in the...

Chemical Reagent Ammonium Metatungstate Spot

• Brand: leji

• Packaging: Bag/Drum

• Supply Ability: 8000kg

• place of origin: China

• classification: General Reagents

Tungstic acid method: Dissolve tungstic acid with ammonia water, add it into deionized water filled with boiling, heat with stirring to remove ammonia to make Ph=8, add acetic acid when the solution is boiling, and then adjust the Ph value to 2-4 with dilute nitric acid, Continue to heat and concentrate to a relative...

Ammonium metatungstate white powder

• Brand: leji

• Packaging: Bag/Drum

• Supply Ability: 8000kg

• place of origin: China

• classification: General Reagents

The neutralization method uses ammonium paratungstate and nitric acid as raw materials to prepare ammonium metatungstate: add ammonium paratungstate to deionized water and ammonium citrate to prepare a slurry containing WO312% to 30% concentration. According to ammonium paratungstate: nitric acid = 1:20, add 3% to 5%...

Mixed molybdenum carbide scrap

• Brand: leji

• Packaging: Bag/Drum

• Supply Ability: 8000kg

• place of origin: China

• purity: High purity

Pure molybdenum wire is used for high temperature electric furnace; molybdenum sheet is used to manufacture radio equipment and X-ray equipment; adding molybdenum to alloy steel can improve elastic limit, corrosion resistance and maintain permanent magnetism. Molybdenum is one of seven micronutrients required for...

High Purity Molybdenum Waste

• Brand: leji

• Packaging: Bag/Drum

• Supply Ability: 8000kg

• place of origin: China

• purity: High purity

The application of molybdenum in the chemical industry is also becoming more and more attractive, especially the rapid development of the application of molybdenum compounds in the chemical industry. In recent years, although molybdenum is in a downturn, the application of molybdenum compounds is still in a growing...

Low carbon tungsten rod for steelmaking

• Brand: leji

• Packaging: Bag/Drum

• Supply Ability: 8000kg

• place of origin: China

• purity: High purity

Tungsten is mostly used in the production of special steels. The widely used high-speed steel contains 9%-24% tungsten, 3.8%-4.6% chromium, 1%-5% vanadium, 4%-7% cobalt, 0.7%-1.5% carbon. The characteristic of high-speed steel is that it can be quenched automatically at a high tempering temperature (700-800℃) in the...

Low carbon ferrotungsten for steelmaking

• Brand: leji

• Packaging: Bag/Drum

• Supply Ability: 8000kg

• place of origin: China

• purity: High purity

Iron tungsten is smelted by electric furnace. Due to its high melting point, it cannot be released in liquid state, so it is produced by agglomeration method or iron extraction method. Before the 1930s, small (100-500 kVA) single-phase electric arc furnaces were generally used for agglomeration smelting. Later,...

Specializing in the production of molybdenum rods

• Brand: leji

• Packaging: Bag/Drum

• Supply Ability: 8000kg

• place of origin: China

• purity: High purity

Molybdenum rods have high melting point, good thermal conductivity and low thermal expansion properties. They can be used to manufacture electric vacuum devices and electric light source parts, as well as high temperature heating elements, high temperature structural parts, electrodes, etc. 1. Molybdenum products have...