Sodium Molybdate[2]
Overview
Sodium Molybdate is an important inorganic salt of molybdenum with significant industrial and agricultural applications. As a white, crystalline powder, it serves as a key source of molybdenum in various chemical processes and formulations. The compound exists in both anhydrous and dihydrate forms, with the dihydrate being more common in commercial applications. The substance plays a critical role in multiple industries due to its unique chemical properties, including high solubility in water and stability under normal conditions. Its importance stems from molybdenum's essential role in biological systems and industrial processes, making sodium molybdate a versatile compound in both B2B and agricultural markets.
Physical and Chemical Properties
Sodium Molybdate exhibits several notable physical and chemical characteristics that determine its applications. The anhydrous form has a high melting point of 687°C and a density of 3.28 g/cm³, while the dihydrate form loses water molecules upon heating. The compound is highly soluble in water, forming clear, colorless solutions that are stable under normal conditions. Chemically, sodium molybdate acts as a mild oxidizer and can form complexes with various organic and inorganic compounds. It's non-flammable but may decompose at high temperatures to release toxic fumes. The compound's stability, combined with its ability to release molybdate ions in solution, makes it particularly valuable for applications requiring controlled molybdenum delivery.
Main Applications
The primary use of Sodium Molybdate is in agriculture as a molybdenum micronutrient fertilizer, essential for legume crops and certain other plants. In industrial settings, it serves as an effective corrosion inhibitor in cooling water systems and metal treatment processes, often outperforming chromate-based inhibitors. Other significant applications include its use as a catalyst in petroleum refining and chemical synthesis processes, as a component in pigments and dyes, and in the manufacturing of other molybdenum compounds. The electronics industry utilizes high-purity sodium molybdate in certain specialized applications, while laboratories employ it as an analytical reagent.
Safety and Storage
While Sodium Molybdate is generally considered low in toxicity, proper safety precautions should be observed. The compound may cause irritation to eyes, skin, and respiratory system upon exposure. Appropriate personal protective equipment including gloves, goggles, and dust masks should be used when handling the powder form. Storage requires a cool, dry environment in tightly sealed containers to prevent moisture absorption. The substance should be kept away from strong acids and reducing agents. Spills should be cleaned up promptly with appropriate methods to prevent dust generation. For large-scale industrial users, proper ventilation systems and dust control measures are recommended in handling areas.
B2B Procurement Guide
When procuring Sodium Molybdate for commercial or industrial use, several factors should be considered. Purity requirements vary by application, with agricultural uses typically accepting technical grade (98-99% purity) while specialized applications may require analytical grade (99.5%+). Packaging options range from 25kg bags to bulk containers, depending on volume needs. Lead time and supplier reliability are crucial considerations, as are transportation and storage requirements. Buyers should verify certificates of analysis and compliance with relevant industry standards. For international shipments, proper documentation for hazardous materials (though sodium molybdate is generally not classified as dangerous goods) should be confirmed. Establishing long-term contracts with reputable suppliers can ensure consistent quality and pricing stability.
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