WM1778 Ammonium Metatungstate (AMT) (CAS No. 12333-11-8)

Catalog No. WM1778
Purity ≥99.0%
Color White
Density 4g/cm3
Form Powder

Stanford Advanced Materials provides a different purity and customized packed Ammonium Metatungstate (AMT) powder with a competitive price and great delivery time. Customized forms are available upon request.

Related Products: Tungsten Powder (W Powder), Tungsten Boat (High Purity W Boat), Tungsten (W) Crucible, Ammonium Paratungstate (APT).

Ammonium Metatungstate Description

Ammonium metatungstate, also known as AMT, is a tungsten chemical in the form of highly soluble hydrated crystals. AMT is produced as a minus 10-mesh powder to meet stringent demands in the catalyst, medical, semiconductor, and other high-technology industries. AMT is also used in materials research and in analytical chemistry. At room temperature, aqueous solutions can be saturated up to 70% by weight of contained WO3. SAM provides different purity and customized packed Ammonium Metatungstate powder.

Ammonium Metatungstate

 

Ammonium Metatungstate Specification

Grade

AMT-1

AMT-2

composition of WO3(%)

≥88

≥84

water solubility(25℃)

300gAMT/100 ml water

 

insoluble matter(%)

≤0.1

≤0.5

Fe

0.002

0.005

Si

0.002

0.006

Mo

0.01

0.03

Ca

0.001

0.001

Al

0.001

0.001

Mg

0.001

0.001


Ammonium Metatungstate Applications

AMT is mostly used in industries as a raw material for the production of tungsten catalysts for different systems of reactions including oxidation, hydroxylation, hydrogenation, and polymerization. Ammonium metatungstate is also used in the manufacture of various petrochemical catalysts and other tungsten compounds, and it’s the main raw material for tungsten-based catalysts in refineries.

-          Reagents for chemical analysis such as for medical diagnosis

-          Source material substrate for certain semiconductor devices

-          High purity source medical for research in tungsten chemistry

-          Source material for the DeNOx catalyst industry

-          As a precursor to a variety of polyoxometalates

 

Ammonium Metatungstate Safety Information

Symbol

GHS05 GHS07  GHS05, GHS07

Signal word

Danger

Hazard statements

H302-H318

Precautionary statements

P280-P305 + P351 + P338

Personal protective equipment

dust mask type N95 (US), Eyeshields, Gloves

RIDADR

NONH for all modes of transport

WGK Germany

2

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