Sodium Molybdate, Disodium Molybdate, Sodium Molybdenum Oxide, Disodium Tetra Oxo Molybdate, 7631-95-0, 10102-40-6

Sodium Molybdate, Disodium Molybdate, Sodium Molybdenum Oxide, Disodium Tetra Oxo Molybdate, 7631-95-0, 10102-40-6

Sodium Molybdate (Na₂MoO₄)

CAS Numbers:

• Anhydrous: 7631-95-0

• Dihydrate: 10102-40-6

Chemical Name and Synonyms:

• Sodium Molybdate

• Disodium Molybdate

• Molybdic Acid, Disodium Salt

• Sodium Molybdenum Oxide

• Disodium Tetraoxomolybdate,

Diğer İsimleri (Türkçe)

• Sodyum Molibdat

• Disodyum Molibdat

• Molibdik Asit, Disodyum Tuzu

• Sodyum Molibden Oksit

• Disodyum Tetraokso Molibdat

• Sodyum Molibdenat

• Molybdate (MoO₄²⁻), sodium (1:2)

• NSC 77389

• HS 458

CAS Numaraları:

• Anhidrat Form: 7631-95-0

• Dihidrat Form: 10102-40-6

Synonyms (English)

• Sodium Molybdate

• Disodium Molybdate

• Molybdic Acid, Disodium Salt

• Sodium Molybdenum Oxide

• Disodium Tetraoxomolybdate

• Sodium Molybdenate

• Molybdate (MoO₄²⁻), sodium (1:2)

• NSC 77389

• HS 458

CAS Numbers:

• Anhydrous Form: 7631-95-0

• Dihydrate Form: 10102-40-6

Physical and Chemical Properties

• Appearance: White crystalline powder

• Molecular Weight: 205.9 g/mol (anhydrous)

• Melting Point: 687 °C

• Boiling Point: 1580 °C

• Density: 3.78 g/cm³

• Solubility: Highly soluble in water (84 g/100 ml at 100 °C)

Production Methods

• Roasting Method: Molybdenum is roasted to form molybdenum trioxide, then treated with caustic soda, filtered, crystallized, and dried.

• Recrystallization Method: Produces higher purity; involves dissolution, precipitation with nitric acid, sublimation, and drying to obtain sodium molybdate dihydrate.

Applications

• Water Treatment: Removes harmful ions and impurities.

• Metal Processing: Corrosion inhibitor, plating additive.

• Agriculture: Essential micronutrient for plants; used in fertilizers.

• Chemical Industry: Reagent in organic and inorganic synthesis.

• Energy: Corrosion inhibitor in geothermal power plants.

Biological Role

Acts as a cofactor for molybdoenzymes in plant and animal metabolism.

• Nitrate Reductase: Converts nitrogen into usable forms in plants.

• Xanthine Oxidase: Plays a role in purine metabolism.

Environmental Impact

• Eco-friendly alternative to chromate-based inhibitors.

• Effective in heavy metal removal in water treatment.

• Excessive release may disrupt ecological balance.

Safety Information

• Store in a cool, dry place.

• Use protective equipment (gloves, goggles).

• In case of contact, wash thoroughly with water and seek medical help if necessary.

Purity and Certification

• Forms: Anhydrous and dihydrate.

• Grades: Technical, reagent, and analytical.

• Certification: COA (Certificate of Analysis) ensures batch-specific quality.

Sectoral Suitability Table