99.5% Sodium Tungstate

Reagent in analytical chemistry, Paint pigments, Production of molybdated toners & lakes, Metal finishing, Brightening agent for zinc plating, Corrosion inhibitor, Catalyst in die & pigment production, Additive for fertilizer & feeds, Macro nutrient. Sodium molybdate acts an important role as a fertilizer in agriculture, chemicals tracer in chromatographical analysis, effectively corrosion inhibitor in industry. Besides, it has lots of aplications in manufacturing pharmaceuticals,...

Sodium molybdate white scaly crystal, slightly glossy, density 3.2g/cm, easily soluble in water, can lose crystal water at 100°, used in the manufacture of alkaloids, inks, fertilizers, molybdenum red pigments and fastness pigment precipitants, catalysts, Molybdenum salts can also be used to make flame retardants and metal corrosion inhibitors for non-polluting cold water systems, and can also be used as galvanizing agents, polishing agents and chemical reagents. Company Profile Jiangsu Leiji...

Sodium molybdate is an inorganic substance with the chemical formula Na2MoO4, which is a white rhombus crystal. Molybdenum trioxide can be produced by oxidative roasting of molybdenum concentrate, leaching with liquid alkali to produce sodium molybdate solution, and then it can be obtained by suction filtration, concentration, cooling, centrifugation and drying. Company Profile Jiangsu Leiji Metal Materials Co., Ltd. is a manufacturer of sodium tungstate, tungsten bar, sodium molybdate,...

Precipitants, catalysts, molybdenum salts used in the manufacture of alkaloids, inks, fertilizers, molybdenum red pigments and lightfast pigments, also used in the manufacture of flame retardants and metal inhibitors for pollution-free cold water systems, as well as galvanizing, Polishing agents and chemical reagents. Sodium molybdate is toxic, but is a low toxicity compound. Molybdenum poisoning can cause joint pain, low blood pressure and blood pressure fluctuations, neurological disorders,...

Sodium molybdate, the first ten years of quality, high-quality chemical brand, new chemical, to provide national sales services for enterprises 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 operate waste tungsten, waste molybdenum, ferrovanadium, ferrotungsten, ferromolybdenum and other charge materials, and...

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...

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...