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Merck
CN

322385

Ammonium tungstate

99.99% trace metals basis

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About This Item

Linear Formula:
(NH4)10H2(W2O7)6
CAS Number:
11140-77-5
NACRES:
NA.23
PubChem Substance ID:
329754110
UNSPSC Code:
12352300
MDL number:
MFCD00015956

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InChI

1S/10H3N.10H2O.31O.12W/h10*1H3;10*1H2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/q;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;10*+1/p-10

SMILES string

N.N.N.N.N.N.N.N.N.N.O[W]12(=O)O[W]3(O)(=O)O[W](O)(=O)(O3)O[W]4(O)(=O)O[W](O)(=O)(O4)O[W]5(O)(=O)O[W]6(=O)(O5)O[W]7(=O)(O[W](O)(=O)(O[W]8(O)(=O)O[W](O)(=O)(O[W](O)(=O)(O1)O2)O8)O7)O6

InChI key

LMAJGSPZJYEENT-UHFFFAOYSA-D

assay

99.99% trace metals basis

form

powder

reaction suitability

reagent type: catalyst
core: tungsten

Quality Level

100

Related Categories

General description

Ammonium tungstate, also called ammonium paratungstate or APT is a white crystalline salt with a chemical formula either written (NH4)10H2(W2O7)6 or (NH4)10(H2W12O42). APT is extracted from tungsten ores and is the critical raw material for the production of tungsten metal. Additionally, it is employed in the manufacturing of catalysts, pigments, and specialty chemicals. Its applications extend to the electronics industry, where it is utilized in the production of electronic components and semiconductor materials due to its excellent thermal and electrical properties. It is also a key material in the field of energy storage, particularly in the development of advanced batteries and energy-efficient devices.

Application

  • Alkyl Ammonium Tungstate Bonded to Fe3O4@ SiO2 Nanoparticles: This research details the synthesis of a highly efficient catalyst for the oxidation of symmetrical sulfides, which is crucial for various chemical syntheses (Khatami et al., 2023).

Physical form

Soluble form

Analysis Note

Purity excludes ~2000 ppm Mo.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000465174
0000465174
0000450451
0000450451
0000209874

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