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267856

Sigma-Aldrich

Molybdenum(VI) oxide

ACS reagent, ≥99.5%

Synonyme(s) :

Molybdenum trioxide

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About This Item

Formule linéaire :
MoO3
Numéro CAS:
1313-27-5
Poids moléculaire :
143.94
Numéro CE :
215-204-7
Numéro MDL:
MFCD00003469
Code UNSPSC :
12352303
ID de substance PubChem :
329752884
Nomenclature NACRES :
NA.21
Essai:
≥99.5%
Qualité:
ACS reagent
Forme:
powder
Le tarif et la disponibilité ne sont pas disponibles actuellement.

Qualité

ACS reagent

Niveau de qualité

200

Essai

≥99.5%

Forme

powder

Pertinence de la réaction

reagent type: catalyst
core: molybdenum

Impuretés

≤0.01% insol. dil. NH4OH

Pf

795 °C (lit.)

Traces d'anions

AsO43-, PO43- and SiO2: ≤0.001%
chloride (Cl-): ≤0.002%
nitrate (NO3-): passes test
phosphate (PO43-): ≤5 ppm
sulfate (SO42-): ≤0.02%

Traces de cations

NH4+: ≤0.002%
heavy metals (as Pb): ≤0.005%

Chaîne SMILES 

O=[Mo](=O)=O

InChI

1S/Mo.3O

Clé InChI

JKQOBWVOAYFWKG-UHFFFAOYSA-N

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Catégories apparentées

Application

Precursor to LAMOX fast ion conductors and superconductors.
Used in the solid state synthesis of a remarkable ternary, reduced molybdenum oxide, Pr4Mo9O18, whose structure contains previously unknown Mo7, Mo13 and Mo19 clusters. The new cluster product is a small band gap semiconductor.

Pictogrammes

Health hazardExclamation mark
GHS08,GHS07

Mention d'avertissement

Warning

Mentions de danger

H319,H335,H351

Classification des risques

Carc. 2 - Eye Irrit. 2 - STOT SE 3

Organes cibles

Respiratory system

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

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Certificats d'analyse (COA)

Lot/Batch Number
MKCW5995
MKCV3400
MKCT0747
MKCS0358
MKCQ9961

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Kinetics and mechanism of molybdenum (VI) oxide reduction.
Sloczynski J.
Journal of Solid State Chemistry, 118(1), 84-92 (1995)
Temperature-programed reduction of molybdenum (VI) oxide and molybdenum (IV) oxide.
Arnoldy P, et al.
The Journal of Physical Chemistry, 89(21), 4517-4526 (1985)
Eagleson M.
Concise Encyclopedia Chemistry, 224-224 (1994)
Eagleson M.
Concise Encyclopedia Chemistry, 509-509 (1994)
High-activity MgO-supported CoMo hydrodesulfurization catalysts prepared by non-aqueous impregnation.
Kaluza L, et al.
Applied Catalysis. B, Environmental, 162, 430-436 (2015)
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Questions

1–3 of 3 Questions  

  1. 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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  2. 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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  3. What is the phase of this material as determined by XRD analysis?

    1 answer

    1. The product is in the orthorhombic phase.

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