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The synthetic method and application of sodium molybdate

2023-01-31

The synthetic method of Sodium Molybdate:

1. In the laboratory, it can be obtained by melting the mixture of molybdenum trioxide and sodium carbonate. In industry, the raw material molybdenite (main component MoS2) is oxidized and roasted to produce crude molybdenum oxide, washed with nitric acid to remove impurities, then dissolved in aqueous sodium hydroxide solution, heated and concentrated to obtain Sodium Molybdate Dihydrate Na2MoO4·2H2O. Heating to 100 ° C Serve anhydrous.

The main application of sodium molybdate:

1. Used in the preparation of molybdenum salts and dyes, pigments, catalysts, corrosion inhibitors, etc.

2. Used as metal corrosion inhibitor, scale remover, bleach accelerator and skin and hair protectant

3. Used as an analytical reagent for the determination of alkaloids, dyes and pharmaceutical industries

4. Precipitants, catalysts, and molybdenum salts for the manufacture of alkaloids, inks, fertilizers, molybdenum red pigments, and light-resistant pigments. They can also be used for the manufacture of flame retardants and metal inhibitors for pollution-free cold water systems. They can also be used as plating agents. Zinc, polishes and chemicals.

5. Molybdate is an anodic oxide film type corrosion inhibitor, which forms a ferrous-ferrous-molybdenum oxide passivation film on the anode iron to play a role in corrosion inhibition.

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