Molybddntrioxid

Molybdenum trioxide Struktur
1313-27-5
  • CAS-Nr.1313-27-5
  • Bezeichnung:Molybddntrioxid
  • Englisch Name:Molybdenum trioxide
  • Synonyma:Molybdaentrioxid;Molybddntrioxid
    MoL;MoO3;mo1202t;Mo 1202T;Molybdena;Moly Oxide;MOLYBDIC OXIDE;Molybdntrioxid;CATALYST DC-160;naturalmolybdite
  • CBNumber:CB6180308
  • Summenformel:MoO3
  • Molgewicht:143.94
  • MOL-Datei:1313-27-5.mol
Molybddntrioxid physikalisch-chemischer Eigenschaften
  • Schmelzpunkt: :795 °C(lit.)
  • Siedepunkt: :1155 °C
  • Dichte :4.692
  • Flammpunkt: :1155°C subl.
  • storage temp.  :Store at +5°C to +30°C.
  • Löslichkeit :0.49g/l
  • Aggregatzustand :Sublimed Powder
  • Farbe :White to gray
  • Wichte :4.69
  • Wasserlöslichkeit :0.5 g/L (20 ºC)
  • Merck  :14,6239
  • InChIKey :JKQOBWVOAYFWKG-UHFFFAOYSA-N
  • CAS Datenbank :1313-27-5(CAS DataBase Reference)
  • IARC :2B (Vol. 118) 2018
  • NIST chemische Informationen :Molybdenum(vi) oxide(1313-27-5)
  • EPA chemische Informationen :Molybdenum trioxide (1313-27-5)
Sicherheit

Molybdenum trioxide Chemische Eigenschaften,Einsatz,Produktion Methoden

  • R-Sätze Betriebsanweisung: R36/37:Reizt die Augen und die Atmungsorgane.
    R48/20/22:Gesundheitsschädlich: Gefahr ernster Gesundheitsschäden bei längerer Exposition durch Einatmen und durch Verschlucken.
  • S-Sätze Betriebsanweisung: S22:Staub nicht einatmen.
    S23:Gas/Rauch/Dampf/Aerosol nicht einatmen(geeignete Bezeichnung(en) vom Hersteller anzugeben).
    S25:Berührung mit den Augen vermeiden.
  • Chemische Eigenschaften Molybdenum trioxide is an odorless, white crystalline powder that turns yellow when heated.
    Molybdenum trioxide
    Molybdenum trioxide is perhaps the most important compound of molybdenum. Pure molybdenum trioxide is used in chemical and catalyst manufacture. The technical product is added to steel as an alloying agent. Molybdenum trioxide also serves as a catalyst in the petroleum industry and as a component of ceramics, enamels and pigments.
  • Physikalische Eigenschaften Soft white powder; orthorhombic crystals; turns yellow on heating; density 4.69 g/cm3 at 21°C; melts at 795°C without decomposition to a dark yellow liquid; vapor pressure 20 torr at 851°C and 200 torr at 1,014°C; boils at 1,155°C; sparingly soluble in cold water (1.066 g/L at 18°C) and moderately soluble in hot water (20.55 g/L at 70°C); dissolves in acids and alkalies.
  • Verwenden Chiefly as a reagent for chemical analysis.Used for trace metal analysis.
  • Verwenden Molybdenum(VI) oxide is used in catalyst compositions to carry out desulfurization of petroleum feedstocks and to remove nitrogen-containing compounds from petroleum fractions. Other uses of this oxide include preparation of various molybdate salts and as reagents for chemical analyses.
  • Verwenden Molybdenum trioxide (MnO3) is a compound used to make enamels adhere to metals.
  • synthetische Molybdenum(VI) oxide is obtained by igniting molybdenum or its compounds in air:
    2Mo + 3O2 → 2MoO3
    2MoS2 + 7O2 → 2MoO3 + 4SO2
    MoS2 + 4O2 → MoO3 + SO2 + SO3
    Roasting the sulfide is carried out in a multiple-hearth roaster under controlled temperature and airflow. The product mixture is sublimed to obtain high purity oxide.
    Purified molybdenum(VI) oxide also is made by prolonged heating of ammonium molybdate in air:
    (NH4)2Mo2O7 → 2MoO3 + 2NH3 + H2O
    An alternative method involves repeatedly evaporating a mixture of ammonium molybdate and nitric acid. Ammonium nitrate so formed is separated from the product molybdenum(VI) oxide by extraction with water:
    (NH4)2Mo2O7 + 2HNO3 → 2MoO3 + 2NH4NO3 + H2O
  • Allgemeine Beschreibung Colorless to white or yellow odorless solid. Sinks in water.
  • Air & Water Reaktionen Insoluble in water.
  • Reaktivität anzeigen Molybdenum trioxide reacts violently with chlorine trifluoride, lithium, potassium and sodium. Readily combines with acids and bases to form a series of polymeric compounds. Incompatible with interhalogens and metals. A violent detonation occurs when heated with molten magnesium.
  • Hazard Toxic material.
  • Health Hazard Compound is relatively nontoxic. Dust irritates eyes.
  • Brandgefahr Flash point data for Molybdenum trioxide are not available, but Molybdenum trioxide is probably non-flammable.
  • Sicherheitsprofil Poison by ingestion, subcutaneous, and intraperitoneal routes. Human systemic effects by inhalation: pulmonary fibrosis and cough. Questionable carcinogen with experimental neoplastigenic data. A powerful irritant. Explodes on contact with molten magnesium. Violent reaction with interhalogens (e.g., bromine pentafluoride, chlorine trifluoride). Incandescent reaction with hot sodium, potassium, or lithium. When heated to decomposition it emits toxic fumes of Mo.
  • mögliche Exposition Molybdenum trioxide is used in agriculture; manufacture of metallic molybdenum, ceramic glazes; enamels, pigments, and in analytical chemistry.
  • Versand/Shipping UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.
  • läuterung methode Crystallise it from water (1g/50mL) between 70o and 0o. The solubility in H2O is 0.1% at 18o, and 2% at 70o. It is a white powder which turns yellow reversibly on heating. It sublimes readily at 1155o/760mm. [Hein & Herzog Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol II p 1412 1965.]
  • Inkompatibilitäten Explodes on contact with molten magnesium. Violent reaction with strong oxidizers, such as chlorine trifluoride; bromine pentafluoride. Not compatible with strong acids; active metals (sodium, potassium, lithium).
Molybdenum trioxide Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
Molybddntrioxid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
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1313-27-5, Molybdenum trioxide Verwandte Suche:
  • Mo 1202T
  • mo1202t
  • Molybdena
  • Molybdenum anhydride
  • Molybdenum(VI) oxide, 99.95% (metals basis)
  • Molybdenum(VI) oxide, Puratronic(R), 99.998% (metals basis excluding W), W 300ppm max
  • MOLYBDENIUM TRIOXIDE pure
  • Molybdenum(VI) oxide, Puratronic, 99.998% (metals basis excluding W), W 300ppm max
  • Molybdenum(VI) oxide, Puratronic, 99.9995% (metals basis)
  • Molybdenum (VI) oxide on alumina, catalyst
  • Molybdenum disufide solid lubricanting film
  • Molybdenum(VI) trioxide
  • Molybdenum trioxide,refined
  • MOLYBDENIUMTRIOXIDE
  • Molybdenum(VI) Oxide 99%
  • MolybdenuM(VI) oxide, 99.999%, (trace Metal basis)
  • MolybdenuM(VI) oxide, 99+% 100GR
  • MolybdenuM(VI) oxide, Puratronic|r, 99.9995% (Metals basis excluding W)
  • Molybdenum(VI) oxide/ 99.9+%
  • Molybdenum(VI) oxide/ 99.999%
  • Molybdenum(VI) oxide,Molybdenum trioxide
  • Molybdenum (VI) oxide on alumina, catalyst (10-12% MoO3)
  • MOLYBDENUM TRIOXIDE, ACS
  • MoO3 , MolybdenuM(VI) Oxide
  • MolybdenuM(VI) oxide, ACS reagent
  • MOLYBDENUM(VI) OXIDE FOR ANALYSIS
  • Molybdenum(VI) oxide, Puratronic (metals basis excluding W), W 300ppm max
  • MolybdenuM(VI) oxide 99.98% trace Metals basis
  • MolybdenuM(VI) oxide, 99.9995% (Metals basis excluding W)
  • Molybdenum(VI) oxide 99.97% trace metals basis
  • Molybdenum(VI) oxide ACS reagent, >=99.5%
  • Molybdenum(VI) oxide nanopowder, 100 nm (TEM), 99.5% trace metals basis
  • Molybdenum(VI) oxide puriss. p.a., 99.5%
  • Molybdenum(VI) oxide ReagentPlus(R), >=99.5%
  • Molybdenum(VI) oxide Vetec(TM) reagent grade
  • Molybdenum(VI) oxideACS reagent, ≥ 99.5% (Titration)
  • Molybdenum(VI)oxide Molybdic anhydride Molybdic acid anhydride
  • Molybdenum(VI) oxide, For analysis ACS
  • Molybdenum oxide, For analysis ACS
  • Molybdenumanhydride
  • molybdenumoxide(moo3)
  • molybdenumperoxide
  • Molybdic acid hydride
  • MoO3
  • Natural molybdite
  • naturalmolybdite
  • Molybdenum(VI) oxide, 99.995% trace metals basis excluding W
  • Molybdenum(VI) oxide, 99.95% trace metals basis
  • Molybdenum(VI) oxide, 99.9995% trace metals basis excluding W
  • MolybdenuM oxide (MoO6)
  • Molybdenum trioxide (MoO3)
  • MOLYBDENUM TRIOXIDE
  • Molylxlic trioxide
  • MOLYBDENUM OXIDE
  • MOLYBDIC ACID ANHYDRIDE
  • 99.99% SynonyMs MolybdenuM(VI) oxide
  • MoL
  • ybdenum(VI) oxide