1.06521

Sodium molybdate dihydrate

for analysis EMSURE^®, ACS, Reag. Ph Eur

• Synonym(s): Sodium molybdate dihydrate
• Linear Formula: Na₂MoO₄ · 2H₂O
• CAS Number: 10102-40-6
• Molecular Weight: 241.95
• UNSPSC Code: 12352302
• EC Index Number: 231-551-7
• NACRES: NA.21
• MDL number: MFCD00149170
• Assay: 99.5-103.0% (precipitation titration)
• Form: crystals
• Solubility: 840 g/L

Properties

• Quality Segment: 300
• product line: EMSURE^®
• assay: 99.5-103.0% (precipitation titration)
• form: crystals
• potency: 4233 mg/kg LD₅₀, oral (Rat), >2000 mg/kg LD₅₀, skin (Rat)
• 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%, nitrate (NO₃^-): ≤0.005%, phosphate, silicate, arsenate (as PO₄^3-): ≤0.001%, sulfate (SO₄^2-): ≤0.005%
• cation traces: Fe: ≤0.001%, NH₄⁺: ≤0.001%, Pb: ≤0.001%
• storage temp.: 2-30°C
• SMILES string: [Mo](=O)(=O)([O-])[O-].[Na+].[Na+]
• InChI: 1S/Mo.2Na.4O/q;2*+1;;;2*-1
• InChI key: TVXXNOYZHKPKGW-UHFFFAOYSA-N

Description

Application

• Fluorescent Molybdenum Disulfide Quantum Dots for Sensitive Detecting Curcumin in Food Samples through FRET Mechanism.: This study explores the use of sodium molybdate dihydrate in synthesizing molybdenum disulfide quantum dots. These dots are applied in a FRET-based sensor for detecting curcumin in food, illustrating a novel approach in food safety and quality monitoring (Wang S et al., 2024).



• Synthesis and characterization of Anderson-Evans type polyoxometalates, antibacterial properties.: Sodium molybdate dihydrate is used in the synthesis of Anderson-Evans type polyoxometalates. This research focuses on their potential antibacterial applications, contributing to the development of new antimicrobial agents (Avci Özbek H, 2023).




• Embellishing 2-D MoS(2) Nanosheets on Lotus Thread Devices for Enhanced Hydrophobicity and Antimicrobial Activity.: In this innovative study, sodium molybdate dihydrate is employed to enhance the properties of MoS(2) nanosheets, showcasing its utility in creating hydrophobic and antimicrobial surfaces, which can have various practical applications (Selvam GS et al., 2022).

Analysis Note

Assay (precipitative titration): 99.5 – 103.0 %
pH-value (5 %; water): 7.0 - 10.5
Chloride (Cl): ≤ 0.005 %
Nitrate (NO₃): ≤ 0.005 %
Phosphate, Arsenate, Silicate (as PO₄): ≤ 0.001 %
Sulfate (SO₄): ≤ 0.005 %
Fe (Iron): ≤ 0.001 %
NH₄ (Ammonium): ≤ 0.001 %
Pb (Lead): ≤ 0.001 %

Legal Information

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

Safety Information

• Storage Class: 13 - Non Combustible Solids
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable