Ammonium Metatungstate

We are the main supplier of ammonium molybdate in China. We can provide you high quality ammonium molybdate with competitive price Ammonium molybdate, sodium molybdate, factory direct sales, large stock supply, sufficient supply, ex-factory price to get the goods, welcome to call to order. Company Profile Jiangsu Leiji Metal Materials Co., Ltd. is a manufacturer of sodium tungstate, tungsten bar, sodium molybdate, ammonium molybdate, molybdenum bar, and other tungsten and molybdenum series...

Ammonium molybdate, with the chemical formula (NH4)2MoO4, is an inorganic salt and is widely used as a basic raw material for the production of high-purity molybdenum products, molybdenum catalysts, and molybdenum pigments. Storage Precautions: Store in a cool, ventilated warehouse. Keep away from fire and heat sources. It should be stored separately from acids and edible chemicals, and should not be stored together. Storage areas should be provided with suitable materials to contain spills....

Ammonium molybdate needs to be closed and fully exhausted. Operators must undergo special training and strictly abide by operating procedures. It is recommended that operators wear self-priming filter dust masks, chemical safety goggles, anti-virus infiltration work clothes, and rubber gloves. Avoid generating dust. Avoid contact with acids. Light loading and unloading during transportation to prevent package damage. Equipped with leakage emergency treatment equipment. Empty containers may be...

Ammonium molybdate is mainly used for smelting ferromolybdenum and preparing molybdenum trioxide and metal molybdenum powder; as raw material for tungsten-molybdenum alloy and molybdenum wire; for geological exploration of phosphate rock; for chemical catalyst; a small amount for agricultural molybdenum Fertilizer; a very small amount is used in medicine; as a component of various enzymes, the lack of molybdenum can lead to dental caries, kidney stones, Keshan disease, Kashin-Beck disease,...

Ammonium molybdate is mainly used for smelting ferromolybdenum and preparing molybdenum trioxide and metal molybdenum powder as raw materials for tungsten-molybdenum alloy and molybdenum wire; secondly, it is used as a catalyst for chemical industry; a small amount is used as agricultural molybdenum fertilizer; a very small amount is used in medicine As a component of various enzymes, the lack of molybdenum can lead to dental caries, kidney stones, Keshan disease, Kashin-Beck disease,...

Ammonium tungstate is a chemical substance whose molecular formula is (NH4)10W12O41~xH2O. Mainly used to manufacture tungsten trioxide or blue tungsten oxide metal tungsten powder; the downstream products of metal tungsten powder include tungsten material series, such as tungsten bars, tungsten wire and other electric vacuum materials; there are alloy series, such as tungsten carbide, cemented carbide , alloy blades, alloy drill bits, alloy molds, etc.; other wear-resistant, pressure-resistant,...

Uses: It can be used to make ammonium tungsten phosphate, etc. Raw material for the manufacture of ammonium phosphotungstate and other tungsten compounds. Metal tungsten and catalysts can also be produced. Mainly used to manufacture tungsten trioxide or blue tungsten oxide metal tungsten powder; the downstream products of metal tungsten powder include tungsten material series, such as tungsten bars, tungsten wire and other electric vacuum materials; there are alloy series, such as tungsten...

After calcination of ammonium tungstate into tungsten trioxide, the tungsten trioxide is reduced, and then the tungsten trioxide reduced tungsten powder is oxidized and reduced twice in a cycle, and the particle size distribution is between 0.1 and 0.5 μm. %, submicron tungsten powder with a specific surface area of 2.684m2/g. 2) This cyclic redox method has the advantages of simple and easy process route, easy control of process parameters, simple equipment and suitable for industrial mass...

Ammonium tungstate was calcined into tungsten trioxide in air, and then submicron tungsten powder was prepared by cyclic redox method. The submicron tungsten powder prepared by the method has the advantages of less pollution, narrow particle size distribution, simple and easy process route, easy control of process parameters, simple equipment and suitability for industrial mass production, etc., and the obtained submicron tungsten powder particles are spherical. , which is conducive to the...

The particle size of the tungsten powder reduced by tungsten trioxide for the first time is not uniform, the tungsten powder with coarse particles is more, and the tungsten powder with fine particles is very little. This is consistent with the conclusion reported in the literature that tungsten trioxide is suitable for preparing coarse-grained tungsten powder. The tungsten trioxide obtained by calcining ultra-pure ammonium tungstate in air is reduced to the particle size distribution of...

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 electrochromic windows, smart windows. These windows are electrically switched glass, and the light transmission performance varies with the applied voltage. This allows users to tint their...

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., Ltd. is a manufacturer of sodium tungstate, tungsten bar, sodium molybdate, ammonium molybdate, molybdenum bar, and other tungsten and molybdenum series products. And concurrently...

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 manufacture of various petrochemical catalysts and other tungsten compounds, and is the main raw material for tungsten-based catalysts in refineries. Company Profile Jiangsu Leiji...

There are many preparation methods of AMT. The principle processes of the main preparation methods are: 1. Using ammonium tungstate solution as raw material, firstly prepare metatungstic acid press solution by solvent extraction or ion exchange method, and then obtain ammonium metatungstate through evaporative crystallization; 2. The AMT solution is obtained by solvent extraction with sodium tungstate solution as raw material, and then ammonium metatungstate is obtained by evaporative...

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 density of 1.5 to 2, stop heating, and cool and filter. The filtrate was fully stirred with ethanol, settled and filtered, and the crystals were dried at 80°C and pulverized to...

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% of dilute nitric acid to the ammonium paratungstate slurry, control the solid-liquid ratio to 1: (3 to 4), the Ph value to 2 to 4, and heat to dissolve, so that the relative...

Ammonium molybdate is mainly used for smelting ferromolybdenum and preparing molybdenum trioxide and metal molybdenum powder as raw materials for tungsten-molybdenum alloy and molybdenum wire; secondly, it is used as a catalyst for chemical industry; a small amount is used as agricultural molybdenum fertilizer; a very small amount is used in medicine As a component of various enzymes, the lack of molybdenum can lead to dental caries, kidney stones, Keshan disease, Kashin-Beck disease,...

Ammonium metatungstate is a homopolyacid ammonium salt of tungsten, a tungsten compound with large molecular weight and high water solubility, 300g/100ml. Different crystallization conditions have three molecular formulas (NH4)6H2W12O40.nH2O or (NH4)6H2W12O40.XH2O or (NH4)6H2W12O40. Preparation process: There are mainly neutralization method, tungstic acid method, thermal decomposition method, solvent extraction method and ion exchange method. (NH4)6H2W12O40•xH2O decomposes into a relatively...

Jiangsu LUCKY METAL MATERIALS Co., Ltd. has been engaged in the research, development and sales of ammonium tungstate chemical and biochemical reagents for a long time. The product passed the quality inspection. After calcination of ammonium tungstate into tungsten trioxide, the tungsten trioxide is reduced, and then the tungsten trioxide reduced tungsten powder is oxidized and reduced twice in a cycle, and the particle size distribution is between 0.1 and 0.5 μm. %, submicron tungsten powder...

Ammonium molybdate is mainly used for smelting ferromolybdenum and preparing molybdenum trioxide and metal molybdenum powder; As raw material of tungsten molybdenum alloy and molybdenum wire; For geological exploration of phosphate rock; Used as catalyst in chemical industry; A small amount is used as agricultural molybdenum fertilizer; Very small amount for medicine; As a component of many enzymes, molybdenum deficiency can lead to dental caries, kidney stones, Keshan disease, Kashin Beck...