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Basic information

  • Name:

  • Molybdenum oxide

  • CAS No.:

  • 1313-27-5

  • Formula:
  • MoO3
  • 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;

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Consensus Reports

Reported in EPA TSCA Inventory.

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

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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