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203815

Sigma-Aldrich

Molybdenum(VI) oxide

99.97% trace metals basis

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
eCl@ss :
38180807
ID de substance PubChem :
24852067
Nomenclature NACRES :
NA.23

Niveau de qualité

100

Essai

99.97% trace metals basis

Forme

powder

Pf

795 °C (lit.)

Application(s)

battery manufacturing

Chaîne SMILES 

O=[Mo](=O)=O

InChI

1S/Mo.3O

Clé InChI

JKQOBWVOAYFWKG-UHFFFAOYSA-N

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Description générale

Molybdenum(VI) oxide, also known as molybdenum trioxide, is a compound of molybdenum and oxygen with the approximate chemical formula of MoO3. Typically, it a white or light yellow powder, although molybdenum(VI) oxide can adopt a high concentration of defects including oxygen vacancies that impart a bluish or greenish color. Molybdenum(VI) oxide has a high melting point of 2,620 °C. Chemically, molybdenum(VI) oxide is a strong oxidizing agent and has a high work function. Consequently, it is used as a catalyst in chemical reactions and as a starting material to produce other molybdenum compounds. In addition, it is added to pigments, glasses, lubricants, and plastics.

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.
Used in the solid state synthesis of a remarkable ternary, reduced molybdenum oxide, Pr4Mo9O18, whose structure contains previously unknown Mo7, Mo13and 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

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

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Certificats d'analyse (COA)

Lot/Batch Number
0000381894
0000381894
0000270145
0000223406
0000212193

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Yu-Zhan Wang et al.
The Journal of chemical physics, 134(3), 034706-034706 (2011-01-26)
The electronic structures at the MoO(3)∕Co interface were investigated using synchrotron-based ultraviolet and x-ray photoelectron spectroscopy. It was found that interfacial chemical reactions lead to the reduction of Mo oxidation states and the formation of Co-O bonds. These interfacial chemical
Di-Yan Wang et al.
Advanced materials (Deerfield Beach, Fla.), 24(25), 3415-3420 (2012-06-08)
A heterojunction photodiode with NIR photoresponse using solution processable pyrite FeS(2) nanocrystal ink is demonstrated which has the advantages of earth-abundance and non-toxicity. The device consists of a FeS(2) nanocrystal (NC) thin film sandwiched with semiconducting metal oxides with a
MoO3 films spin-coated from a nanoparticle suspension for efficient hole-injection in organic electronics.
Jens Meyer et al.
Advanced materials (Deerfield Beach, Fla.), 23(1), 70-73 (2010-10-27)
Lili Cai et al.
Nano letters, 11(2), 872-877 (2011-01-26)
We report an atmospheric, catalyst-free, rapid flame synthesis technique for growing single, branched, and flower-like α-MoO(3) nanobelt arrays on diverse substrates. The growth rate, morphology, and surface coverage density of the α-MoO(3) nanobelts were controlled by varying the flame equivalence
Kourosh Kalantar-zadeh et al.
Nanoscale, 2(3), 429-433 (2010-07-21)
The formation of MoO(3) sheets of nanoscale thickness is described. They are made from several fundamental sheets of orthorhombic alpha-MoO(3), which can be processed in large quantities via a low cost synthesis route that combines thermal evaporation and mechanical exfoliation.
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