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Specialty Chemicals, Metals & Materials from Alfa Aesar

Precious Metal Compounds & Catalysts


Alfa Aesar, now Thermo Fisher Scientific, supplies a comprehensive range of over 350 high purity precious metal compounds and catalysts. Most materials are in stock in production quantities for immediate delivery. Product quality is assured through our strict quality standards and backed by comprehensive certificates of analysis. Custom manufacturing, special packaging and prompt delivery are all part of the services we offer.

Precious Metal Compounds and Homogenous Catalysts

Alfa Aesar offers a full range of precious metal salts and solutions manufactured to stringent specifications. Homogenous catalysis provides an excellent choice where highly specific reactions are desired including chiral transformations. Our homogeneous catalysts can be used in a wide range of chemical transformations.

Catalysts in varying purities and concentrations

Due to their high selectivity, precious metal chemicals are often the first choice as heterogeneous catalysts for a wide variety of reactions, including hydrogenation, hydrosilation, isomerization and carbonylation. Alfa Aesar carries a wide selection of purities and concentrations for a broad range of applications, including organic synthesis in the pharmaceutical industry. We offer a unique collection of chiral ligands for asymmetric hydrogenation, novel palladium coupling catalysts, platinum group metal (PGM)-based heterogeneous catalysts as well as Sponge Nickel™ catalysts.

Our catalyst optimization services include catalyst process development within multi-step syntheses, knowledge-based catalyst selection, product purification technology (Smopex®) and process scale-up.

Fuel cell catalysts for anodes, cathodes, electrodes

Johnson Matthey is a leading developer of catalysts and other products for fuel cell research and development. Alfa Aesar exclusively offers these products from stock in bulk and semi-bulk quantities. The HiSPEC® line of precious metal catalysts provides superior performance in proton exchange membrane (PEM) and direct methanol fuel cells, for fuel cell research. HiFUEL® fuel processing catalysts and gas treatment products are base metal catalysts for use in fuel cell and other distributed hydrogen processing applications. Alfa Aesar offers a variety of fuel cell components, including Nafion® membranes, Toray™ carbon paper, cathodes, anodes and membrane electrode assembly (MEA) products.

Smopex® Scavenger Systems

The use of metal catalysts within the pharmaceutical industry allows the efficient transformation or combination of molecules that would otherwise be unfeasible. However, these metals can become an impurity in the final product. Smopex metal scavengers offer one of the most efficient options for removing these metal impurities.

Specialty Silver Compounds

Alfa Aesar is renowned as a leader in specialized high purity silver products. By employing a number of starting materials, we are able to consistently control specific impurities. We have the capability of producing batch sizes from 25kg through 200 kg. Many silver compounds are photosensitive. All our specialized silver compounds are packaged in lightproof containers. Alfa Aesar also offers custom development and manufacture of other silver compounds.

VERTEC™ Organo-Titanates

VERTEC organo-titanates are extremely effective and versatile catalysts for esterification reactions of all types. They range from relatively simple, highly reactive titanium species to more specialized and custom-made products.

VERTEC catalysts are used at industrial scale to produce:

  • A wide range of plasticizers phthalates, adipates, trimellitates, azelates and sebacates.
  • Simple acrylates such as butyl and 2-ethyl-hexyl acrylates and more complex acrylates such as those used as water treatment chemicals.
  • Fine Chemical Intermediates.
  • Polyesters for fibre, film and resin applications.
  • Specialty esters as used in pharmaceutical, flavours and fragrances.

The wide selection of standard VERTEC organo-titanates is fitting for most applications, but custom formulations can be made for specific requirements. Alfa Aesar now offers research and development quantities of standard VERTEC products from stock.


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