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Ammonium metatungstate hydrate

ALDRICH/463922 - 99.99% trace metals basis

Synonym: Ammonium tungsten oxide hydrate; Hexaammonium wolframate hydrate

CAS Number: 12333-11-8
Empirical Formula (Hill Notation): H26N6O40W12 · xH2O
Molecular Weight: 2956.30 (anhydrous basis)
EC Number: 234-733-4
MDL Number: MFCD00150662
Linear Formula: (NH4)6H2W12O40 · xH2O
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-463922-25G 25 g
 $217.00
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assay 99.99% trace metals basis
form powder
impurities ≤150.0 ppm Trace Metal Analysis
InChI 1S/6H3N.9H2O.32O.12W/h6*1H3;9*1H2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/q;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;6*+1;+2/p-8
InChI key ZBHPUDGBNLMJQH-UHFFFAOYSA-F
mp 100 °C (dec.) (lit.)
reaction suitability reagent type: catalyst
core: tungsten
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
Application: Ammonium metatungstate can be used as a precursor to synthesize:• Carbon-supported tungsten catalyst for hydrogenolysis of cellulose.
• Reduced tungsten and mixed tungsten oxide catalysts for bifunctional hydroisomerization of n-alkanes.
• Hybrid 2D/3D tungsten diselenide transistors via chemical vapor deposition method.
General description: Ammonium metatungstate is a Keggin-type heteropoly compound. It can be prepared by polycondensation of ammonium tungstate solutions. It is widely used as a precursor for preparing tungsten catalysts for hydrocracking and as a fuel cell catalyst.
Packaging: 25 g in poly bottle
Purity 99.99% trace metals basis
mp 100 °C (dec.) (lit.)
UNSPSC 12352302

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