1.06524

Sodium molybdate dihydrate

EMPLURA^®

• Synonym(s): Sodium molybdate dihydrate
• Empirical Formula (Hill Notation): MoNa₂O₄ · 2H₂O
• CAS Number: 10102-40-6
• Molecular Weight: 241.95
• MDL number: MFCD00149170
• UNSPSC Code: 12352302
• EC Index Number: 231-551-7

Properties

• Quality Level: 200
• product line: EMPLURA^®
• assay: 98.0-103.0% dry basis (precipitation titration)
• form: crystals
• potency: 4233 mg/kg LD₅₀, oral (Rat); >2000 mg/kg LD₅₀, skin (Rat)
• loss: 14.0-16.0% loss on drying, 140 °C
• pH: 9-10 (20 °C, 840 g/L in H₂O)
• mp: 687 °C (Elimination of water of crystallisation)
• solubility: 840 g/L
• density: 2.71 g/cm³ at 22 °C (for the dihydrate)
• bulk density: 1000‑1400 kg/m³
• anion traces: chloride (Cl^-): ≤0.005%; phosphate (PO₄^3-): ≤0.02%
• cation traces: NH₄⁺: ≤0.001%; heavy metals (as Pb): ≤0.001%
• storage temp.: 2-30°C
• InChI: 1S/Mo.2Na.4O/q;2*+1;;;2*-1
• InChI key: TVXXNOYZHKPKGW-UHFFFAOYSA-N

Description

Application

• Fluorescent Molybdenum Disulfide Quantum Dots: Sodium molybdate dihydrate is employed in the synthesis of molybdenum disulfide quantum dots. These quantum dots are used for sensitive detection of curcumin in food samples through the FRET mechanism, illustrating its potential in enhancing food safety and quality analysis (Wang et al., 2024).


• Anderson-Evans Type Polyoxometalates: Research involving sodium molybdate dihydrate focuses on the synthesis and characterization of Anderson-Evans type polyoxometalates, exploring their antibacterial properties. This study contributes significantly to pharmaceutical and biomedical research, offering new avenues for antibacterial material development (Avci Özbek, 2023).


• Enhanced Hydrophobicity and Antimicrobial Activity: Sodium molybdate dihydrate is used in the embellishment of 2-D MoS2 nanosheets on lotus thread devices. The resulting enhancement in hydrophobicity and antimicrobial activity demonstrates its utility in material science, specifically in developing advanced functional materials (Selvam et al., 2022).

Analysis Note

Assay (precipitative titration, calculated on dried substance): 98.0 - 103.0 %
Identity: passes test
Appearance of solution: passes test
Chloride (Cl): ≤ 0.005 %
Phosphate (PO₄): ≤ 0.02 %
NH₄ (Ammonium): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.001 %
Loss on drying (140 °C): 14.0 - 16.0 %

Legal Information

EMPLURA is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable