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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)
Saraswathi R Panneerselvam et al.
Clinica chimica acta; international journal of clinical chemistry, 345(1-2), 93-98 (2004-06-15)
Diabetes mellitus manifests itself in a wide variety of complications and the symptoms of the disease are multi-factorial. The lipid peroxidation (LPO) and antioxidant status were investigated in hemolysate, liver and kidney in alloxan-induced diabetic rats and the effect of
Cornelis A M Van Gestel et al.
Chemosphere, 82(11), 1614-1619 (2010-12-15)
Mo bioaccumulation in the earthworm Eisenia andrei was determined after 28 d exposure in ten different European field soils (pH 4.4-7.8) and an artificial soil, freshly spiked with Na₂MoO₄ at concentrations between 3.2 and 3200 mg Mo kg⁻¹ dry soil.
Bernardo Predicala et al.
Journal of hazardous materials, 154(1-3), 300-309 (2007-11-21)
Biogenic production of hydrogen sulphide (H2S) in oil reservoirs (souring) has been shown to be controlled effectively using nitrite and molybdate salts. In the present work the effects of addition of nitrite and molybdate on reducing the emission of H2S

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