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Ammonium Metatungstate
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Ammonium Metatungstate

Ammonium metatungstate can be raw material for catalyst, special steel, ceramic additives, sintered metal additives, electroic materials.
CAS NO.: 12333-11-8
Packing: Drum or bag
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  • WO3 91%

  • W&Q

1. Molecular Formula: H28N6O41W12

2. Property: White crystalline powder. Soluble in water.

3. Specification(%):

WO3

91min

Mo

0.002max

Fe

0.001max

Al

0.001max

Si

0.001max

Ni

0.001max
Ca 0.001max
K 0.001max
Na 0.001max
Mn 0.001max
Cr 0.001max
As 0.001max
P 0.002max
Bi 0.0005max
Sn
 0.0005max
Sb 0.0005max
Cu 0.001max
Zn 0.001max
Ti 0.001max
Cl 0.02max

Mg

0.001max

ammonium metatungstate


USAGE

Application Area

 Specific Uses

Production of Tungsten Catalysts


A major use is as a precursor for preparing tungsten-based catalysts (e.g., for hydrodesulfurization in oil refining) and catalyst supports.
Precursor to Tungsten Oxide Its aqueous solution is an excellent source of tungsten for making high-purity tungsten trioxide (WO₃) via thermal decomposition.
Preparation of Metallic Tungsten Through the oxide reduction pathway, it is used to produce fine and ultra-fine tungsten powder.
Chemical Source in Materials Science

Used for synthesizing tungsten-containing coatings, films (e.g., by spray pyrolysis or sol-gel methods), and other functional materials like phosphors.
Ceramics and Pigments

Serves as a raw material for tungsten bronzes and certain ceramic pigments.





  • For Manufacturers
    Reduced processing time, lower energy costs, and more efficient use of equipment.
  • For Product Performance
    Enhanced consistency, superior catalytic activity, finer metal powders, and higher-purity materials.
  • For R&D
    A versatile and controllable molecular building block for advanced materials.
  • For Manufacturers
    Reduced processing time, lower energy costs, and more efficient use of equipment.
  • For Product Performance
    Enhanced consistency, superior catalytic activity, finer metal powders, and higher-purity materials.
  • For R&D
    A versatile and controllable molecular building block for advanced materials.
FAQs
  • What is the main difference between AMT and APT?
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    ·AMT (Ammonium Metatungstate): Extremely high solubility in water and even in acidic solutions. Often used for liquid-phase processes like catalyst impregnation or making coatings.

    ·APT (Ammonium Paratungstate): Has much lower solubility in water and precipitates in acidic conditions. It's the traditional primary intermediate in tungsten refining, often processed via solid-state calcination.
  • What are the primary uses of AMT?
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    ·Catalyst Manufacturing: The #1 use. Impregnating catalyst supports (e.g., for hydrotreating catalysts in oil refineries).

    ·Tungsten Oxide Production: Decomposes cleanly to high-purity tungsten trioxide (WO₃).

    ·Fine Tungsten Powder: WO₃ from AMT is reduced to produce fine/ultra-fine tungsten metal powder.

    ·Advanced Materials: Source of tungsten for coatings, ceramic pigments, phosphors, and functional films via spray pyrolysis or sol-gel methods.
  • Is AMT hazardous? What safety precautions are needed?
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    It is generally considered a low to moderate hazard chemical, but precautions are necessary:

    ·Inhalation: Avoid dust. Use local exhaust ventilation or respiratory protection.

    ·Skin/Eyes: Can cause irritation. Wear gloves and safety glasses.

    ·Ingestion: Harmful. Do not eat or drink where handled.

    ·Always consult the specific Safety Data Sheet (SDS) provided by your supplier for detailed handling, storage, and disposal procedures.
W&Q stand out as a leading supplier of Ammonium Metatungstate, backed by our expertise in fine chemicals and customer focus:

• We offer a full product line of cobalt, nickel, copper, fluoride, tungsten, and rare earth compounds—so you can source all your industrial chemicals from a single, reliable supplier.

• Our team includes professional technical personnel who provide tailored support, from helping you optimize rubber formulations to troubleshooting application issues.

• We adhere to the business philosophy of “breaking old rules and embracing innovation,” constantly improving our production processes to enhance product quality and reduce costs.

• We provide excellent after-sales service, ensuring you are satisfied with your order—if you have questions or concerns, our team responds promptly.

• With over 40 key products covering industry, agriculture, pharmacy, and feed sectors, we understand the unique needs of rubber manufacturers and can adapt to your specific requirements.

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