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331058

Sigma-Aldrich

Sodium molybdate dihydrate

ACS reagent, ≥99%

Synonym(s):

Molybdic acid sodium salt dihydrate

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About This Item

Linear Formula:
Na2MoO4 · 2H2O
CAS Number:
Molecular Weight:
241.95
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent

Quality Level

Assay

≥99%

form

powder or crystals

reaction suitability

reagent type: catalyst
core: molybdenum

impurities

≤0.005% insolubles

pH

7.0-10.5 (25 °C, 5%)

mp

100 °C (dec.) (lit.)

anion traces

chloride (Cl-): ≤0.005%
phosphate (PO43-): ≤5 ppm
sulfate (SO42-): ≤0.015%

cation traces

Fe: ≤0.001%
NH4+: ≤0.001%
heavy metals (as Pb): ≤5 ppm

SMILES string

O.O.[Na+].[Na+].[O-][Mo]([O-])(=O)=O

InChI

1S/Mo.2Na.2H2O.4O/h;;;2*1H2;;;;/q;2*+1;;;;;2*-1

InChI key

FDEIWTXVNPKYDL-UHFFFAOYSA-N

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General description

Sodium molybdate dihydrate (Na2MoO4.2H2O) is basic in nature. Its crystals belong to the orthorhombic crystal system and space group Pbca.

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).


Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Emericella astellata, a new producer of aflatoxin B1, B2 and sterigmatocystin.
Frisvad JC, et al.
Letters in Applied Microbiology, 38(5), 440-445 (2004)
The Crystal Structure of Sodium Molybdate Dihydrate, Na2MoO4?2H2O.
Matsumoto K, et al.
Bulletin of the Chemical Society of Japan, 48(3), 1009-1013 (1975)
Akira Sakakura et al.
Chemical communications (Cambridge, England), (30)(30), 3561-3563 (2008-07-26)
Efficient total syntheses of fluvibactin and vibriobactin have been achieved via molybdenum(VI) oxide-catalyzed dehydrative cyclization, Sb(OEt)(3)-catalyzed ester-amide transformation, and WSCI and HOAt-promoted dehydrative amide formation.
Laurent Caron et al.
Journal of colloid and interface science, 282(2), 478-485 (2004-12-14)
Chemically generated singlet oxygen (1O2, 1Deltag) is able to oxidize a great deal of hydrophobic substrates from molybdate-catalyzed hydrogen peroxide decomposition, provided a suitable reaction medium such as a microemulsion system is used. However, high substrate concentrations or poorly reactive
I Ieropoulos et al.
Enzyme and microbial technology, 52(1), 32-37 (2012-12-04)
The effects of adding sulphate in: (i) standard activated sludge microbial fuel cells (MFCs) and (ii) larger-scale leachate-treating columns - both as individual units and as a system connected in cascade - are reported. S-replete power output was ∼2-fold higher

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