Saltar al contenido
Merck
Todas las fotos(1)

Key Documents

Otros documentos

10035

Sigma-Aldrich

Ammonium metatungstate hydrate

≥85% WO3 basis (gravimetric)

Sinónimos:

AMT, Hexaammonium wolframate hydrate, Tungstic acid hexaammonium salt

Iniciar sesiónpara Ver la Fijación de precios por contrato y de la organización
Todas las fotos(1)

About This Item

Fórmula lineal:
(NH4)6H2W12O40 · xH2O
Número de CAS:
12333-11-8
Peso molecular:
2956.30 (anhydrous basis)
EC Number:
234-733-4
MDL number:
MFCD00150662
UNSPSC Code:
12352300
PubChem Substance ID:
57646791
NACRES:
NA.23

Quality Level

100

assay

≥85% WO3 basis (gravimetric)

form

solid

reaction suitability

reagent type: catalyst
core: tungsten

impurities

≤0.005% water-insoluble matter

loss

≤15% loss on ignition

mp

100 °C (dec.) (lit.)

SMILES string

N.N.N.N.N.N.O.O[W]1O[W](O)(=O)(O1)O[W]2(=O)(=O)O[W](O)(=O)(O2)O[W]3(=O)(=O)O[W](O)(=O)(O3)O[W]4(=O)(=O)O[W](O)(=O)(O[W]5(=O)(=O)O[W](O)(=O)(O[W]6(=O)(=O)O[W](O)(O)O6)O5)O4

InChI

1S/6H3N.9H2O.32O.12W/h6*1H3;9*1H2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/q;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;6*+1;+2/p-8

InChI key

ZBHPUDGBNLMJQH-UHFFFAOYSA-F

¿Está buscando productos similares? Visita Guía de comparación de productos

Categorías relacionadas

General description

Ammonium metatungstate hydrate is used as a starting material to prepare catalysts for the reduction of NOx. It can also be used as a precursor to synthesize tungsten oxide thin films by chemical vapor deposition method.

Application

  • Effect of morphology properties of NiW catalysts on hydrodesulfurization for individual sulfur compounds in fluid catalytic cracking diesel: This research discusses the influence of ammonium metatungstate hydrate in the preparation of NiW catalysts, focusing on its role in hydrodesulfurization processes (X Tao et al., 2014).
  • Preparation of quaternary tungsten bronze nanoparticles by a thermal decomposition of ammonium metatungstate with oleylamine: This study examines the decomposition pathways of ammonium metatungstate hydrate into metatungstate anions and their applications in creating tungsten bronze nanoparticles (J Choi et al., 2015).

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

¿Ya tiene este producto?

Encuentre la documentación para los productos que ha comprado recientemente en la Biblioteca de documentos.

Visite la Librería de documentos

Daniel Delgado et al.
Dalton transactions (Cambridge, England : 2003), 49(38), 13282-13293 (2020-09-17)
Materials from the WO3-Nb2O5 system, presenting bronze-type crystal structures, display outstanding functional properties for several applications as thermoelectric materials, lithium-ion battery electrodes, or catalysts. In this work, a series of W-Nb-O oxide bronzes have been synthesized by the hydrothermal method
Ze-Da Meng et al.
Nanoscale research letters, 6(1), 459-459 (2011-07-22)
WO3-treated fullerene/TiO2 composites (WO3-fullerene/TiO2) were prepared using a sol-gel method. The composite obtained was characterized by BET surface area measurements, X-ray diffraction, scanning electron microscopy, energy dispersive X-ray analysis, transmission electron microscopy, and UV-vis analysis. A methyl orange (MO) solution
Alessandro Chieregato et al.
ChemSusChem, 8(2), 398-406 (2014-12-10)
Glycerol surplus from biodiesel synthesis still represents a major problem in the biofuel production chain. Meanwhile, those in the acrylic acid market are looking for new processes that are able to offer viable alternatives to propylene-based production. Therefore, acrylic acid
Thandavarayan Maiyalagan et al.
Analytical chemistry, 86(15), 7849-7857 (2014-07-16)
Supported tungsten carbide is an efficient and vital nanomaterial for the development of high-performance, sensitive, and selective electrochemical sensors. In this work, tungsten carbide with tube-like nanostructures (WC NTs) supported platinum nanoparticles (PtNPs) are synthesized and explored as an efficient
Luqman Atanda et al.
ChemSusChem, 8(17), 2907-2916 (2015-08-05)
A water-THF biphasic system containing N-methyl-2-pyrrolidone (NMP) was found to enable the efficient synthesis of 5-hydroxymethylfurfural (HMF) from a variety of sugars (simple to complex) using phosphated TiO2 as a catalyst. Fructose and glucose were selectively converted to HMF resulting

Nuestro equipo de científicos tiene experiencia en todas las áreas de investigación: Ciencias de la vida, Ciencia de los materiales, Síntesis química, Cromatografía, Analítica y muchas otras.

Póngase en contacto con el Servicio técnico