Introduction

Sodium Molybdate Dihydrate, also known by various synonyms including Disodium molybdate dihydrate and Molybdic acid sodium dihydrate, is a versatile chemical compound with the CAS number 10102-40-6. It is primarily used in scientific research, as well as in the manufacture of dyes, pigments, and various industrial applications.

Chemical Profile

The molecular formula of Sodium Molybdate Dihydrate is $H_{4}MoN{a}_2{O}_{6}H\_4MoNa\_2O\_6$, with a molar mass of 241.9477. It has a density of 2.37 g/mL at 25°C, and a melting point of 100°C (dec.)(lit.). This compound is slightly soluble in water and not soluble in acetone, making it suitable for specific scientific and industrial processes.

Physical Properties

Sodium Molybdate Dihydrate appears as white crystals or powder. Proper storage conditions include keeping it between +5°C to +30°C in a ventilated, dry warehouse, and ensuring it is protected from moisture, light, open flames, and high temperatures to maintain its stability and effectiveness.

Applications

Sodium Molybdate Dihydrate is extensively used in:

Scientific Research:

Utilized as a reagent for the manufacture of alkaloids and other substances, as well as for the determination of alkaloids, glycosides, total phosphorus, and available phosphorus content in phosphate fertilizers. It is also used for testing protein-free blood filtrate and serum protein.

Industrial Uses: 

Involved in the production of dyes, molybdenum red pigments, catalysts, molybdenum salts, and sun-resistant lake precipitators. It serves as a raw material for flame retardants and metal corrosion inhibitors in pollution-free cooling water systems.

Corrosion Inhibition:

Acts as a corrosion inhibitor, ensuring the longevity and durability of metal structures in various environments.

Haploid Breeding: 

Used in the preparation of H medium, T medium, modified Nish medium, MS medium, and RM medium for haploid breeding.

Zinc Plating and Polishing: 

Applied as a polishing agent and zinc plating, enhancing the quality and appearance of metal surfaces.

Conclusion

Sodium Molybdate Dihydrate is a crucial compound in the realms of scientific research and industrial applications. Its wide range of uses in the manufacture of pigments, catalysts, and corrosion inhibitors underscores its importance in advancing chemical processes and product development.