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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:
10102-40-6
Molecular Weight:
241.95
EC Number:
231-551-7
MDL number:
MFCD00149170
UNSPSC Code:
12352302
PubChem Substance ID:
329754456
NACRES:
NA.21
grade:
ACS reagent
form:
powder or crystals
Pricing and availability is not currently available.

grade

ACS reagent

Quality Level

200

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.[1]

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

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Certificates of Analysis (COA)

Lot/Batch Number
MKCX3206
0000349815
MKCW5121
MKCV7083
MKCV9374

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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)
Sankha Chattopadhyay et al.
Nuclear medicine and biology, 37(1), 17-20 (2010-02-04)
A simple and inexpensive method has been developed for the separation of (99m)Tc from (99)Mo produced from the neutron activation of (98)Mo by (98)Mo(n,gamma)(99)Mo nuclear reaction. The recovery of (99m)Tc was performed by solid-liquid extraction based on alumina column chromatography.
Bo-Geon Yun et al.
Biochemistry, 43(25), 8217-8229 (2004-06-24)
Hsp90 functions to facilitate the folding of newly synthesized and denatured proteins. Hsp90 function is modulated through its interactions with cochaperones and the binding and hydrolysis of ATP. Recently, novobiocin has been shown to bind to a second nucleotide binding
Ana Acacia de Sá Pinheiro et al.
Experimental parasitology, 115(4), 352-358 (2006-11-23)
In this work, an ecto-phosphatase activity of Entamoeba histolytica was characterized using intact cells. This activity presented the following biochemical characteristics: (i) it hydrolyzes p-NPP with V(max) of 8.00+/-0.22 nmol p-NP x h(-1) x 10(-5) cells and K(m) of 2.68+/-0.25
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Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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