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  • Sodium Molybdate Raw materials Powder CAS:7631-95-0

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    Product Overview:

    Sodium molybdate is an important chemical raw material, widely used in metal corrosion inhibitors, rust removers, hair promotion protectants and other fields. In the laboratory, it can be produced by melting a mixture of molybdenum trioxide and sodium carbonate, while industrially it is produced by oxidizing and roasting molybdenite and dissolving it in aqueous sodium hydroxide solution. Sodium molybdate is also commonly used in alkaloid determination, dye and pharmaceutical industries, catalysts, molybdenum salt manufacturing, etc.

    Sodium Molybdate Raw materials Powder CAS:7631-95-0 Attributes

    Natural Sodium Molybdate Raw materials Powder

    CAS:7631-95-0

    MF:MoNa2O4

    Sodium Molybdate

    MW:205.91714

    EINECS:231-551-7

    Specification: 99% min Sodium Molybdate Powder

    Sample:Sodium Molybdate Powder

    Packaging:1kg/bag, 25kg/drum

    Brand: Henrikang

    Appearance:White

    Storage: Store at -20°C

    Shelf Life: 2 Years

    Test Method: HPLC

    Sodium Molybdate Raw materials Powder CAS:7631-95-0 Details

    Sodium Molybdate Powder Usage and Synthesis.

    Sodium molybdate is an important molybdenum compound with a wide range of applications. It can be used to prepare molybdenum salts, dyes, pigments, catalysts, corrosion inhibitors and so on.

    In addition, sodium molybdate can be used as metal corrosion inhibitor with low level of environmental pollution, which is a new type of water treatment agent with more applications.

    In agriculture, sodium molybdate is one of the earliest micronutrient fertilizers applied to provide plant nutrients. In industry, sodium molybdate can be used in the manufacture of flame retardants and metal-free refrigeration system inhibitors.

    Sodium Molybdate Powder

    Uses of Sodium Molybdate.

    Molybdate has low toxicity and low level of environmental pollution, which is a new type of water treatment agent with more applications at present.

    In order to get a better retardation effect, molybdate is often compounded with polyphosphate, gluconate, zinc salt, benzotriazole, which not only reduces the amount of molybdate used, but also improves the corrosion inhibition effect, the amount of molybdate after compounding is reduced from 200 to 500mg/L to 4 to 6mg/L.

    Molybdate film-forming process, there must be dissolved oxygen present, without calcium ions (or other divalent metal ions). Molybdate is thermally stable and can be used in circulating water systems with high heat flow density and localized overheating.

    Sodium molybdate can be used in the manufacture of alkaloids, inks, fertilizers, precipitants for molybdenum red pigments and sunlight-resistant pigments, catalysts, molybdenum salts, as well as in the manufacture of flame retardants and metal inhibitors for non-polluting chilled water systems, and as a galvanizing, abrasive and chemical reagent.

    Sodium Molybdate

    Characteristic of Sodium Molybdate.

    Sodium molybdate is the molybdate of sodium. White rhombic crystal. Slightly soluble in water, insoluble in acetone. Crystallization from aqueous solution (pH higher than 8 alkaline solution) can be obtained dihydrate, the latter for the white rhombic crystals, MoO42- ions to the regular presence of orthotetrahedral, relative density 3.28, heated to 100 ° C to lose 2 molecules of water to get the anhydrous material, soluble in water, insoluble in ethyl acetate.

    To the sodium molybdate solution gradually add acid, lower the pH of the solution, molybdate can be polymerized into a variety of the same polymolybdate, including sodium dimolybdate, sodium tri-molybdate, sodium secondary molybdate, sodium octamolybdate and sodium decamolybdate and so on.

    Although molybdenum has a variety of compounds from zero-valent to hexavalent, but only hexavalent compound molybdate is the most stable. The most important molybdenum ore for the manufacture of molybdate raw materials is molybdenite (the main component is MoS2).

    Sodium Molybdate raw materials

    Product Method of Bulk Sodium Molybdate Powder.

    In the laboratory it can be obtained by melting a mixture of molybdenum trioxide and sodium carbonate. Industrially, the raw material molybdenite (the main component MoS2) is oxidized and roasted to make crude molybdenum oxide, which is washed with nitric acid to remove impurities, and then dissolved in aqueous sodium hydroxide solution, and heated and concentrated to obtain Na2MoO4-2H2O, sodium molybdate dihydrate. it is anhydrous when heated to 100℃.

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