Ammonium Tungstate Dihydrate

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,...

Molybdic Acid is an inorganic compound with a molecular formula of H2MoO4. Refers to the hydrated form of molybdenum trioxide and related substances. Usually in the form of hydrate MoO3 · 2H2O, molecular weight is 179.97, white or slightly yellow monoclinic columnar crystal or powder, industrial products generally contain a small amount of ammonium molybdate, relative density 3.124 (14 ℃). When dried in sulfuric acid or heated to 65~70℃, it loses crystal water and becomes anhydrous. Burned into...

Sodium tungstate is an inorganic substance with the chemical formula Na2WO4. It is a colorless crystal or white crystalline powder. It is weathered in dry air and loses crystal water at 100 °C. It is soluble in water, insoluble in ethanol, and has a relative density of 3.23 to 3.25. Melting point 698 ℃ (anhydrous). 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...

Sodium tungstate is colorless crystal or white orthorhombic crystal, lustrous flake crystal or crystalline powder. Sodium tungstate is soluble in water, and its aqueous solution is slightly alkaline, insoluble in ethanol, and slightly soluble in ammonia. Weathered in the air. When heated to 100°C, it loses crystal water and becomes anhydrous. It reacts with strong acids (except hydrofluoric acid) to form water-insoluble yellow tungstic acid, reacts with phosphoric acid or phosphate to form...

1. The wolframite is crushed to 320 mesh by the alkaline hydrolysis method of tungsten ore, and 30% caustic soda is added to the reactor for alkaline hydrolysis. After alkaline hydrolysis, it is reacted with calcium chloride to synthesize calcium tungstate, and calcium tungstate reacts with hydrochloric acid to generate tungstic acid. Then react with caustic soda to generate sodium tungstate, which is evaporated, crystallized, centrifuged and dried to obtain the finished product of sodium...

Sodium tungstate is used in mordant, analytical reagent, catalyst, water treatment agent, manufacture of fireproof and waterproof materials, as well as phosphotungstate, borotungstate, etc. Used in the manufacture of metal tungsten, tungstic acid, tungstate, etc. For mordants, pigments, dyes, inks. It is used as a fabric weighting agent in textile workers, and this product is used as a fabric auxiliary. The mixture composed of sodium tungstate, ammonium sulfate, ammonium phosphate, etc. is used...

Weigh 0.5 g of the sample into a 250 ml beaker, dissolve it with a little water, add 100 ml of 60-80 ℃ hot water, 2 drops of 0.1% methyl orange indicator (add it if the indicator is brown), and add hydrochloric acid (1+1) Neutralize to red, add 10ml of 10% cinchonine under constant stirring, continue to stir to make the precipitation coagulate, the upper liquid is clear and let it stand, after the precipitation settles, filter with fast quantitative filter paper, and the filtrate is carried in...

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...