Product Description:
Sodium molybdate is an inorganic compound with the chemical formula Na₂MoO₄. It is a valuable source of molybdenum, an essential micronutrient for plants and animals. Typically available as a white crystalline powder or granules, sodium molybdate is soluble in water. It is widely utilized in agriculture as a fertilizer to correct molybdenum deficiencies in crops, particularly legumes. In industrial settings, it serves as an effective corrosion inhibitor for water treatment systems, a component in pigment manufacturing, and a catalyst in certain chemical processes. The dihydrate form (Na₂MoO₄·2H₂O) is also common.
Product Properties:
Property
Value
Chemical Name
Sodium molybdate
Chemical Formula
Na₂MoO₄ (anhydrous)
CAS Number
7631-95-0 (anhydrous); 10102-40-6 (dihydrate)
Molecular Weight
205.92 g/mol (anhydrous)
Appearance
White crystalline powder or granules
Melting Point
687 °C (1269 °F; 960 K) (anhydrous)
Density
3.78 g/cm³ (anhydrous)
Solubility
Soluble in water; insoluble in most organic solvents
Key Characteristics
Source of molybdenum, corrosion inhibitor, micronutrient
Common Forms
Anhydrous (Na₂MoO₄), Dihydrate (Na₂MoO₄·2H₂O)
Product Usage:
Agriculture:
Micronutrient Fertilizer: Applied to soil or as a foliar spray to provide essential molybdenum for plant growth, crucial for nitrogen fixation in legumes. For example, enhancing yield in soybean, pea, and alfalfa crops.
Seed Treatment: Used to coat seeds, ensuring molybdenum availability for seedlings, promoting healthy early development.
Industrial Applications:
Corrosion Inhibitor: Added to cooling water systems, industrial water treatments, and engine coolants to protect metals like steel and aluminum from corrosion. For example, in closed-loop water circulation systems.
Pigment Production: Used as a raw material in the manufacture of molybdate orange and red pigments, known for their bright color and stability.
Catalyst: Employed in certain industrial chemical reactions, including some hydrodesulfurization processes in the petroleum industry.
Metal Finishing: Incorporated into some electroplating baths and surface treatment formulations.
Animal Nutrition:
Feed Additive: Included in animal feed formulations as a source of molybdenum, an essential trace element for livestock health and enzyme function.
Analytical Chemistry:
Laboratory Reagent: Used as a reagent in analytical chemistry for the detection and quantification of substances like phosphates and lead.
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