Product Name

  • Name

    Molybdenum(VI) oxide

  • EINECS 215-204-7
  • CAS No. 1313-27-5
  • Article Data2
  • CAS DataBase
  • Density 4.692 g/cm3
  • Solubility 0.5 g/L (20 °C) in water
  • Melting Point 1155 °C
  • Formula MoO3
  • Boiling Point 1155oC
  • Molecular Weight 143.938
  • Flash Point 1155oC subl.
  • Transport Information
  • Appearance pale yellowish-green powder
  • Safety 22-23-25
  • Risk Codes 36/37-48/20/22
  • Molecular Structure Molecular Structure of 1313-27-5 (Molybdenum(VI) oxide)
  • Hazard Symbols HarmfulXn,IrritantXi
  • Synonyms Bouen SKN301;JCPDS 35-0609;MFR;Molybdena;Molybdenumoxide (Mo4O12);Molybdenum oxide (MoO3), tetramer;Molybdenum trioxide;Molybdenum trioxidetetramer;Molybdenum(VI) oxide;Molybdic anhydride;Molybdic oxide;NSC 215191;Pol-U;Molybdenum(Ⅵ)oxide;
  • PSA 51.21000
  • LogP -0.35640

Synthetic route

{MoCl3(C5H4N)2(H2O)}
126031-97-8

{MoCl3(C5H4N)2(H2O)}

molybdenum trioxide
1313-27-5

molybdenum trioxide

Conditions
ConditionsYield
decompn. at 390-400°C;
carbon disulfide
75-15-0

carbon disulfide

molybdenum trioxide
1313-27-5

molybdenum trioxide

dibenzylamine
103-49-1

dibenzylamine

C30H28Mo2N2O2S6

C30H28Mo2N2O2S6

Conditions
ConditionsYield
Stage #1: molybdenum trioxide With sodium hydrogen sulfide In water for 0.5h; Sealed tube;
Stage #2: carbon disulfide; dibenzylamine With hydrogenchloride In water; toluene at 20 - 100℃; for 4.5h; Sealed tube;		93%
...Expand
morpholine
110-91-8

morpholine

phosphoric acid
86119-84-8, 7664-38-2

phosphoric acid

water
7732-18-5

water

molybdenum trioxide
1313-27-5

molybdenum trioxide

HMo5O23P2(6-)*5C4H9NO*5H2O*5H(1+)

HMo5O23P2(6-)*5C4H9NO*5H2O*5H(1+)

Conditions
ConditionsYield
at 25℃; for 2191.5h; pH=Ca. 4;70%
...Expand
tetra(n-butyl)ammonium hydroxide
2052-49-5

tetra(n-butyl)ammonium hydroxide

molybdenum trioxide
1313-27-5

molybdenum trioxide

di(tetra-n-butylammonium) dimolybdate

di(tetra-n-butylammonium) dimolybdate

Conditions
ConditionsYield
In water at 20℃; for 24h;63%
5,15,10,20-tetraphenylporphyrin
917-23-7

5,15,10,20-tetraphenylporphyrin

molybdenum trioxide
1313-27-5

molybdenum trioxide

(hydroxy)(oxo)(5,10,15,20-tetraphenylporphyrinato)molybdenum(v)
28780-74-7

(hydroxy)(oxo)(5,10,15,20-tetraphenylporphyrinato)molybdenum(v)

Conditions
ConditionsYield
With phenol at 180.84℃; for 4h;60%
hydrogenchloride
7647-01-0

hydrogenchloride

thorium(IV) nitrate pentahydrate

thorium(IV) nitrate pentahydrate

molybdenum trioxide
1313-27-5

molybdenum trioxide

Th(4+)*MoO4(2-)*2Cl(1-)*5H2O

Th(4+)*MoO4(2-)*2Cl(1-)*5H2O

Conditions
ConditionsYield
at 230℃; for 24h; Autoclave;50%
...Expand
sodium arsenate dodecahydrate

sodium arsenate dodecahydrate

1,4-bis(imidazol-l-yl-methyl)benzene
56643-83-5

1,4-bis(imidazol-l-yl-methyl)benzene

molybdenum trioxide
1313-27-5

molybdenum trioxide

As2Mo6O27(8-)*2H2O*8H(1+)*2C14H14N4

As2Mo6O27(8-)*2H2O*8H(1+)*2C14H14N4

Conditions
ConditionsYield
With copper(II) nitrate trihydrate In water at 160℃; for 144h; pH=Ca. 3.5; Autoclave; High pressure;38%
...Expand
potassium 4-(2-decyltetradecyl)-1-piperazinedithiocarbamate

potassium 4-(2-decyltetradecyl)-1-piperazinedithiocarbamate

molybdenum trioxide
1313-27-5

molybdenum trioxide

C58H114Mo2N4O2S6

C58H114Mo2N4O2S6

Conditions
ConditionsYield
Stage #1: molybdenum trioxide With sodium hydrogensulfide In water at 25℃; for 3h; Inert atmosphere;
Stage #2: potassium 4-(2-decyltetradecyl)-1-piperazinedithiocarbamate With hydrogenchloride In tetrahydrofuran; water at 90℃; for 18h;		36.5%
nickel(II) carbonate hydroxide

nickel(II) carbonate hydroxide

molybdenum trioxide
1313-27-5

molybdenum trioxide

nickel molybdate

nickel molybdate

Conditions
ConditionsYield
In water at 90℃; for 20h;
molybdenum trioxide
1313-27-5

molybdenum trioxide

cyclopropane
75-19-4

cyclopropane

Mo(x)O(y)(C3H4)(1+)

Mo(x)O(y)(C3H4)(1+)

Conditions
ConditionsYield
In neat (no solvent, gas phase) byproducts: Mo(x)O(y)(CH2)(1+), Mo(x)O(y)(C2H4)(1+), Mo(x)O(y)(CH4)(1+); study on formation of molybdenum carbene complexes; monitored by ICR mass spectrometer;
strontium(II) carbonate
1633-05-2

strontium(II) carbonate

molybdenum trioxide
1313-27-5

molybdenum trioxide

strontium molybdate

strontium molybdate

Conditions
ConditionsYield
With air In acetone at 600℃; for 12h;
Iron(III) nitrate nonahydrate

Iron(III) nitrate nonahydrate

molybdenum trioxide
1313-27-5

molybdenum trioxide

ferric molybdate

ferric molybdate

Conditions
ConditionsYield
Stage #1: Iron(III) nitrate nonahydrate; molybdenum trioxide at 299.84 - 449.84℃;
Stage #2: at 599.84℃; for 60h;
molybdenum trioxide
1313-27-5

molybdenum trioxide

lithium carbonate
554-13-2

lithium carbonate

potassium carbonate
584-08-7

potassium carbonate

titanium(IV) oxide

titanium(IV) oxide

potassium lithium titanate

potassium lithium titanate

Conditions
ConditionsYield
at 1199.84℃; for 10h;
...Expand
vanadium(V) oxide
788133-24-4

vanadium(V) oxide

phosphoric acid
86119-84-8, 7664-38-2

phosphoric acid

water
7732-18-5

water

molybdenum trioxide
1313-27-5

molybdenum trioxide

phosphovanadomolybdic acid

phosphovanadomolybdic acid

Conditions
ConditionsYield
at 99.84℃;
...Expand
rubidium nitrate
13126-12-0

rubidium nitrate

thorium(IV) nitrate pentahydrate

thorium(IV) nitrate pentahydrate

molybdenum trioxide
1313-27-5

molybdenum trioxide

8Rb(1+)*Th(4+)*6MoO4(2-)=Rb8Th(MoO4)6

8Rb(1+)*Th(4+)*6MoO4(2-)=Rb8Th(MoO4)6

Conditions
ConditionsYield
at 900℃; for 14h;
...Expand
rubidium nitrate
13126-12-0

rubidium nitrate

thorium(IV) nitrate pentahydrate

thorium(IV) nitrate pentahydrate

molybdenum trioxide
1313-27-5

molybdenum trioxide

4Rb(1+)*Th(4+)*4MoO4(2-)=Rb4Th(MoO4)4

4Rb(1+)*Th(4+)*4MoO4(2-)=Rb4Th(MoO4)4

Conditions
ConditionsYield
at 900℃; for 14h;
...Expand
rubidium nitrate
13126-12-0

rubidium nitrate

thorium(IV) nitrate pentahydrate

thorium(IV) nitrate pentahydrate

molybdenum trioxide
1313-27-5

molybdenum trioxide

5Th(4+)*12MoO4(2-)*4Rb(1+)

5Th(4+)*12MoO4(2-)*4Rb(1+)

Conditions
ConditionsYield
at 900℃; for 14h;
...Expand
rubidium nitrate
13126-12-0

rubidium nitrate

thorium(IV) nitrate pentahydrate

thorium(IV) nitrate pentahydrate

molybdenum trioxide
1313-27-5

molybdenum trioxide

thorium molybdate

thorium molybdate

Conditions
ConditionsYield
at 900℃; for 14h;
...Expand
Cl2OPu

Cl2OPu

water
7732-18-5

water

hydrogen bromide
10035-10-6, 12258-64-9

hydrogen bromide

molybdenum trioxide
1313-27-5

molybdenum trioxide

plutonium(III) molybdate bromide hydrate

plutonium(III) molybdate bromide hydrate

Conditions
ConditionsYield
Stage #1: Cl2OPu; hydrogen bromide at 130℃;
Stage #2: water; molybdenum trioxide at 200℃; for 72h; Sealed tube; Glovebox; Inert atmosphere;
...Expand
Cl2OPu

Cl2OPu

water
7732-18-5

water

hydrogen bromide
10035-10-6, 12258-64-9

hydrogen bromide

molybdenum trioxide
1313-27-5

molybdenum trioxide

plutonium(IV) hexamolybdate dihydrate

plutonium(IV) hexamolybdate dihydrate

Conditions
ConditionsYield
Stage #1: Cl2OPu; hydrogen bromide at 130℃;
Stage #2: water; molybdenum trioxide at 230℃; for 72h; Sealed tube; Glovebox; Inert atmosphere;
...Expand
neodymium tribromide hydrate

neodymium tribromide hydrate

water
7732-18-5

water

molybdenum trioxide
1313-27-5

molybdenum trioxide

neodymium(III) dodecamolybdate pentahydrate

neodymium(III) dodecamolybdate pentahydrate

Conditions
ConditionsYield
at 200℃; for 72h; Autoclave;
...Expand
aluminum(III) nitrate nonahydrate

aluminum(III) nitrate nonahydrate

molybdenum trioxide
1313-27-5

molybdenum trioxide

aluminium molybdate

aluminium molybdate

Conditions
ConditionsYield
Stage #1: aluminum(III) nitrate nonahydrate; molybdenum trioxide at 299.84 - 449.84℃;
Stage #2: at 599.84℃; for 60h;
C24H46BNO5

C24H46BNO5

molybdenum trioxide
1313-27-5

molybdenum trioxide

C48H90B2MoN2O12

C48H90B2MoN2O12

Conditions
ConditionsYield
With hydrogenchloride In water for 0.25h; pH=4; Reflux;
C25H48BNO6

C25H48BNO6

molybdenum trioxide
1313-27-5

molybdenum trioxide

C50H94B2MoN2O14

C50H94B2MoN2O14

Conditions
ConditionsYield
With hydrogenchloride In water for 0.25h; pH=4; Reflux;
C18H38BNO4

C18H38BNO4

molybdenum trioxide
1313-27-5

molybdenum trioxide

C36H74B2MoN2O10

C36H74B2MoN2O10

Conditions
ConditionsYield
With hydrogenchloride In water for 0.25h; pH=4; Reflux;
C10H22BNO4

C10H22BNO4

molybdenum trioxide
1313-27-5

molybdenum trioxide

C20H42B2MoN2O10

C20H42B2MoN2O10

Conditions
ConditionsYield
With hydrogenchloride In water for 0.25h; pH=4; Reflux;
C18H36BNO5

C18H36BNO5

molybdenum trioxide
1313-27-5

molybdenum trioxide

C36H70B2MoN2O12

C36H70B2MoN2O12

Conditions
ConditionsYield
With hydrogenchloride In water for 0.166667h; pH=5; Reflux;
molybdenum trioxide
1313-27-5

molybdenum trioxide

copper(II) oxide

copper(II) oxide

copper(II) molybdate

copper(II) molybdate

Conditions
ConditionsYield
at 630℃; for 2h;
ammonium hydroxide
1336-21-6

ammonium hydroxide

molybdenum trioxide
1313-27-5

molybdenum trioxide

copper(II) oxide

copper(II) oxide

[tetraamminecopper(II)] molybdate

[tetraamminecopper(II)] molybdate

Conditions
ConditionsYield
Stage #1: molybdenum trioxide; copper(II) oxide at 630℃; for 2h;
Stage #2: ammonium hydroxide
...Expand
molybdenum trioxide
1313-27-5

molybdenum trioxide

1,2-diaminopropan
78-90-0, 10424-38-1

1,2-diaminopropan

MoO3(1,2-diaminopropane)

MoO3(1,2-diaminopropane)

Conditions
ConditionsYield
In water Reflux; Green chemistry;

Molybdenum Trioxide Consensus Reports

Reported in EPA TSCA Inventory.

Molybdenum Trioxide Standards and Recommendations

OSHA PEL: TWA 5 mg(Mo)/m3
ACGIH TLV: TWA Soluble Compounds: TWA 0.5 mg(Mo)/m3 Confirmed Animal Carcinogen with Unknown Relevance to Humans

Molybdenum Trioxide Specification

The Molybdenum trioxide, with the CAS registry number 1313-27-5, is also known as Molybdenum(VI) oxide. It belongs to the product category of Inorganics. Its EINECS registry number is 215-204-7. This chemical's molecular formula is MoO3 and molecular weight is 143.94. Its IUPAC name is called trioxomolybdenum. This chemical's classification codes are Human Data; Mutation data; Tumor data.

Physical properties of Molybdenum trioxide: (1)H-Bond Donor: 0; (2)H-Bond Acceptor: 3; (3)Rotatable Bond Count: 0; (4)Exact Mass: 145.890152; (5)MonoIsotopic Mass: 145.890152; (6)Topological Polar Surface Area: 51.2; (7)Heavy Atom Count: 4; (8)Formal Charge: 0; (9)Complexity: 61.8; (10)Covalently-Bonded Unit Count: 1.

Preparation: this chemical can be prepared by ammonium molybdate.

Uses of Molybdenum trioxide: it is used to manufacture molybdenum metal, which serves as an additive to steel and corrosion-resistant alloys. It is also a component of the co-catalyst used in the industrial production of acrylonitrile by the oxidation of propene and ammonia. Because of its layered structure and the ease of the Mo(VI)/Mo(V) couple, MoO3 is of interest in electrochemical devices and displays.

When you are using this chemical, please be cautious about it as the following:
This chemical may cause damage to health and may cause inflammation to the skin or other mucous membranes. It is harmful by inhalation and if swallowed. In addition, it is irritating to eyes and respiratory system. You should not breathe its gas/fumes/vapour/spray (appropriate wording to be specified by the manufacturer). What's more, you must avoid contacting it with eyes.

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: O=[Mo](=O)=O
(2)InChI: InChI=1S/Mo.3O
(3)InChIKey: JKQOBWVOAYFWKG-UHFFFAOYSA-N

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LD75 intraperitoneal 400mg/kg (400mg/kg)   Environmental Quality and Safety, Supplement. Vol. 1, Pg. 1, 1975.
man TCLo inhalation 6mg/m3/4Y (6mg/m3) LUNGS, THORAX, OR RESPIRATION: "FIBROSIS, FOCAL (PNEUMOCONIOSIS)"

LUNGS, THORAX, OR RESPIRATION: COUGH		 National Technical Information Service. Vol. AEC-TR-6710,
mouse LD50 intraperitoneal 141mg/kg (141mg/kg) LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 9(6), Pg. 40, 1965.
mouse LD50 subcutaneous 94mg/kg (94mg/kg)   Zhurnal Vsesoyuznogo Khimicheskogo Obshchestva im. D.I. Mendeleeva. Journal of the D.I. Mendeleeva All-Union Chemical Society. Vol. 19, Pg. 186, 1974.
rat LC50 inhalation > 5840mg/m3/4H (5840mg/m3)   Cyprus Copper Company. Vol. 18JUN1991,
rat LD50 oral 2689mg/kg (2689mg/kg)   Cyprus Copper Company. Vol. 18JUN1991,
rat LD50 skin > 2gm/kg (2000mg/kg)   Cyprus Copper Company. Vol. 18JUN1991,

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