Ammonium Metatungstate (AMT)

CAS Number: 12028-48-7

Molecular Formula: H32N6O40W12

Purity: ≥ 90 %

About Ammonium Metatungstate (AMT)

We supply high-purity ammonium metatungstate anhydrous (CAS No: 12028-48-7) to support structural precision and moisture-critical formulations within international solid-state electronics, speciality alloy synthesis, and precision chemical manufacturing operations. Known across international trade logs as anhydrous amm...

Synonyms

Ammonium metatungstate
Hexaammonium wolframate
Ammonium tungstate (meta)
EINECS 234-733-4
H4N.1/6H2O40W12

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Ammonium Metatungstate (AMT) Specifications

CAS Number

12028-48-7

Molecular Formula

H32N6O40W12

Molecular Weight

2962.4 g/mol

IUPAC Name

hexaazanium;hydroxy-[(oxido(dioxo)tungstenio)oxy-dioxotungstenio]oxy-dioxotungsten;bis(hydroxy-[[(oxido(dioxo)tungstenio)oxy-dioxotungstenio]oxy-dioxotungstenio]oxy-dioxotungsten);tungsten;trihydroxide;hydrate

Canonical SMILES

[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].[NH4+].O.[OH-].[OH-].[OH-].O[W](=O)(=O)O[W](=O)(=O)O[W](=O)(=O)[O-].O[W](=O)(=O)O[W](=O)(=O)O[W](=O)(=O)O[W](=O)(=O)[O-].O[W](=O)(=O)O[W](=O)(=O)O[W](=O)(=O)O[W](=O)(=O)[O-].[W]

InChI Key

XHZLHTWMXVICQQ-UHFFFAOYSA-N

InChI

InChI=1S/6H3N.7H2O.33O.12W/h6*1H3;7*1H2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/q;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;3*-1;;;;;;;;;;3*+1

PubChem CID

25113228

MDL Number

MFCD00042673

CAS Number

12028-48-7

Molecular Formula

H32N6O40W12

Molecular Weight

2962.4 g/mol

IUPAC Name

Canonical SMILES

InChI Key

XHZLHTWMXVICQQ-UHFFFAOYSA-N

InChI

InChI=1S/6H3N.7H2O.33O.12W/h6*1H3;7*1H2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/q;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;3*-1;;;;;;;;;;3*+1

PubChem CID

25113228

MDL Number

MFCD00042673

Molecular Weight

2962.4 g/mol

Hydrogen Bond Donor Count

Hydrogen Bond Acceptor Count

Rotatable Bond Count

Monoisotopic Mass

2963.47663 Da

Topological Polar Surface Area

589 Å²

WO3 Purity

≥ 90 %

Hydroprocessing Catalysts

A foundational precursor for synthesising highly active tungsten disulphide (WS) hydrodenitrogenation and hydrodesulfurisation matrices in modern oil refineries

Semiconductor & Electronics

A high-purity chemical vapour deposition target material for establishing dense atomic diffusion barriers and advanced microelectronic interconnect paths

Denox Emission Control

An essential active component deployed during the impregnating phase of selective catalytic reduction (SCR) honeycomb structures for global nitrogen oxide abatement

Thermal Spray Powders

A uniform starting material for structural heavy alloys, tungsten carbide processing, and wear-resistant thermal spray surface treatments

COA

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