CAS 10026-12-7: Pentacloruro de niobio
Descripción:
Pentacloruro de niobio (NbCl5) es un compuesto inorgánico caracterizado por su forma sólida de color marrón oscuro a negro a temperatura ambiente. Es una sustancia altamente reactiva e higroscópica, lo que significa que absorbe fácilmente la humedad del aire. Pentacloruro de niobio es conocido por su capacidad para actuar como un ácido de Lewis, lo que lo hace útil en varias reacciones químicas, particularmente en la síntesis de compuestos que contienen niobio. Tiene una estructura cristalina compleja y puede existir en diferentes formas polimórficas. El compuesto se produce típicamente a través de la cloración del óxido de niobio o del metal de niobio. Debido a su reactividad, debe manejarse con cuidado, ya que puede reaccionar violentamente con agua, liberando ácido clorhídrico y óxido de niobio. En términos de aplicaciones, NbCl5 se utiliza en la producción de aleaciones de niobio y como catalizador en la síntesis orgánica. Las precauciones de seguridad son esenciales al trabajar con este compuesto, ya que puede representar riesgos para la salud si se inhala o si entra en contacto con la piel.
Fórmula:Cl5Nb
InChI:InChI=1S/5ClH.Nb/h5*1H;/q;;;;;+5/p-5
Clave InChI:InChIKey=YHBDIEWMOMLKOO-UHFFFAOYSA-I
SMILES:[Nb](Cl)(Cl)(Cl)(Cl)Cl
Sinónimos:- Columbium pentachloride
- Niobium Pentachloride
- Niobium chloride
- Niobium chloride (92NbCl5)
- Niobium chloride (NbCl<sub>5</sub>)
- Niobium pentachloride (NbCl5)
- Niobium pentachloride (NbCl<sub>5</sub>)
- Niobium(V) chloride
- Niobpentachlorid
- Pentachloroniobium
- Pentachlorure de niobium
- Ver más sinónimos
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Encontrado 14 productos.
Niobium Pentachloride
CAS:Producto controladoApplications Niobium Pentachloride is a reagent used in the synthesis of mixed chloro-aryloxide compounds and dyes. Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package References Ilin, A. et al.: J. Alloy. Comp., 748, 543 (2018); Yuan, L. et al.: Inorg. Chem., 57, 4226 (2018);Fórmula:Cl5NbForma y color:NeatPeso molecular:270.17Niobium(V) chloride
CAS:Niobium(V) chloridePureza:99.9%Forma y color:Pale Yellow SolidPeso molecular:270.17g/molNiobium(V) chloride, 99.95% (metals basis)
CAS:It is used to form mixed chloro-aryloxide compounds, such as [Nb(OC6H3-2,6-i-Pr2)2Cl3]2, which form pyridine or phosphine adducts with a distorted six-coordinate geometry. It is also used in the preparation of pure niobium, and as an intermediate, precursor to many other laboratory reagents. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:Cl5NbPureza:99.95%Forma y color:Yellow white, CrystallinePeso molecular:270.16Niobium(V) chloride, Puratronic™, 99.999% (metals basis)
CAS:Niobium(V) chloride is the precursor in the preparation of pure niobium, and ferroniobium. It is used as a Lewis acid catalyst in organic synthesis in activating alkenes in the carbonyl-ene reaction and the Diels-Alder reaction. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:Cl5NbPureza:99.999%Forma y color:light yellow to yellowPeso molecular:270.16Niobium(V) chloride, 99+%
CAS:Fórmula:NbCl5Pureza:≥ 99.0%Forma y color:Light yellow to yellow powder or crystalsPeso molecular:270.17Niobium(V) chloride
CAS:Niobium(V) chloridePureza:99.99%Forma y color:PowderPeso molecular:270.17g/molNiobium(V) Chloride
CAS:Fórmula:NbCl5Pureza:>99.99%Forma y color:Light yellow to Yellow to Orange powder to crystalPeso molecular:270.16Niobium(V) chloride
CAS:Niobium(V) chloride is a chemical compound that is used as a catalyst in organic reactions. It is an ionic salt of niobium pentachloride and hydrochloric acid, with the formula NbCl5·HCl. Niobium(V) chloride is a solid, which can be obtained as a white powder or crystalline solid. The structural properties of this compound have been studied using x-ray crystallography and FTIR spectroscopy. Niobium(V) chloride reacts with acyl chlorides or esters to form ester or amide derivatives, respectively. This reaction proceeds via an acylation reaction mechanism involving nucleophilic substitution at the carbonyl carbon atom of the acyl chloride or ester reactant by the chloride ion in niobium(V) chloride. Niobium(V) chloride has also been shown to catalyze hydrogen fluoride and hydrochloric acid reactions, which may be due to itsFórmula:Cl5NbPureza:Min. 95%Peso molecular:270.17 g/molNiobium Chloride ultrapure, 99.9%
CAS:Fórmula:NbCl5Pureza:min 99.9%Forma y color:Light yellow to yellow, Crystalline powderPeso molecular:270.17Niobium(V) chloride, 99.9% (metals basis)
CAS:It is the precursor in the preparation of pure niobium, and ferroniobium. It is used as Lewis acid catalyst in the organic synthesis in activating alkenes in the carbonyl-ene reaction and the Diels-Alder reaction. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:Cl5NbPureza:99.9%Forma y color:Yellow, PowderPeso molecular:270.16Niobium(V) chloride, 99% (metals basis)
CAS:In preparation of pure niobium, and as an intermediate.Niobium(V) chloride is the precursor in the preparation of pure niobium, and ferroniobium. It is used as Lewis acid catalyst in the organic synthesis in activating alkenes in the carbonyl-ene reaction and the Diels-Alder reaction. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:Cl5NbPureza:99%Peso molecular:270.16Niobium(V) chloride (99.99%-Nb) (20-200ppm Ta) PURATREM
CAS:Niobium(V) chloride (99.99%-Nb) (20-200ppm Ta) PURATREMFórmula:NbCl5Pureza:(99.99%-Nb)Forma y color:yellow xtl.Peso molecular:270.17Niobium(V) chloride, 99.8%
CAS:This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:Cl5NbPureza:99.8%Forma y color:Yellow, Crystalline powderPeso molecular:270.16Niobium(V) chloride
CAS:Niobium(V) chloridePureza:99.995%Forma y color:Yellow CrystalsPeso molecular:270.17g/mol
