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Specialty Chemicals, Metals & Materials from Alfa Aesar


Alfa Aesar offers expertise in producing and sourcing a substantial range of products for your research, pilot-scale or production application. Backed by the global manufacturing network of Johnson Matthey, a world leader in advanced materials technology, Alfa Aesar offers prompt delivery of many thousands of chemicals and materials directly from stock. Whether it is a specialty metal product, such as a custom metal fabrication, or a shipment of bulk or semi-bulk chemicals, you will find Alfa Aesar to be the supplier of choice: Our product is only surpassed by our customer service.

What is Bulk?
Our products are high purity, specialty items where “bulk” often refers to multi-kilogram quantities. However, some materials are routinely supplied by the ton.

Custom Synthesis
We offer flexible custom manufacturing services to produce quality products with the assurance of full confidentiality. Our labs routinely output chemicals and materials to meet research, pilot-scale and full-scale production requirements. Alfa Aesar offers synthesis capabilities from various locations globally. Our experienced development and production teams can deliver a variety of products to meet the needs of customers in fields varying from pharmaceuticals to semiconductors, structural materials and imaging.

Product Documentation
All product purchased through the Specialty Group are shipped with a batch-specific Certificate of Analysis and Material Safety Data Sheet.

Special Packaging
Because we understand that specific packaging requirements are not merely incidental to your order, we offer special packaging and labeling to meet your specifications. We pack in size for your convenience to meet your precise requirements.


Custom Synthesis

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Part of the Johnson Matthey group of companies, Alfa Aesar is a leading manufacturer of fine chemicals and catalysts used for research and development in a wide span of applications. Drawing on years of production experience and the shared intellectual resources across the Alfa Aesar and Johnson Matthey groups, our chemists have the skills and experience to deliver quality chemicals utilizing process routes from laboratory scale through pilot plant to commercial scale production.

Alfa Aesar offers synthesis capabilities from various locations globally. One of our primary lab- and kilo-scale organic synthesis units is located in Heysham in northwest England. Our high purity materials are made in Royston, England. And our newest plant in Yantai, China includes a pilot plant with eight reactors ranging from 100L to 2000L capacity. Our experienced development and production teams can deliver a variety of products to meet the needs of customers in fields varying from pharmaceuticals to semiconductors, structural materials and imaging.

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Manufacturing and Production

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Alfa Aesar and Johnson Matthey chemists have the skills and production expertise to deliver quality fine chemicals at varying scales. This flexibility allows Alfa Aesar’s manufacturing teams to deliver products to meet the diverse needs of our customers at exacting specifications.

Semi-Bulk to Metric Tons

View a sample list of products manufactured in bulk at Alfa Aesar Synmax

At the new Alfa Aesar Synmax production labs in Yantai, China, an experienced team uses proven techniques and state of the art facilities to offer diverse production capabilities. The 2,100 square meter pilot plant building houses eight reactors ranging from 100L up to our two 2000L glass lined vessels. The pilot plant includes specialized equipment for distillation and low temperature chemistry.

Lab Scale

Our research scale labs in Heysham, UK and Yantai, China employ dozens of PhD production chemists utilizing nearly 200 fume hoods and a broad variety of chemical reactions. Our teams are process oriented, developing routes that are both scalable and efficient. Our Heysham, Yantai, and Royston teams are set up to handle projects in the 10g to 1kg range.

cGMP and API Production

We now offer cGMP and API production in kilo scale to high capacity. Riverside, our dedicated API manufacturing facility in Conshohocken, Pennsylvania, further expands our large scale operations. With a total reactor capacity of 140,000L and a 5,600m2 production area, this facility is a scalable, flexible, multi-purpose production facility with highly automated, DCS recipe driven operations. Riverside is equipped to manufacture parenteral grade APIs (microbial/endotoxin environmental controls) and is licensed to produce DEA controlled substances in Schedules I and II.

Full Time Equivalents

Alfa Aesar Synmax also offers Full Time Equivalent (FTE) services for those customers not requiring GMP certification. A variety of packages are available utilizing our R&D labs, Kilo labs and the pilot plant. Contact an Alfa Aesar sales office for more details.

ISO Certified

Various ISO certifications are in place or pending at all Alfa Aesar production and distribution locations.

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Organic Intermediates and Reagents

Organic image Through our own manufacturing facilities and key manufacturing partnerships, Alfa Aesar can provide a broad range of organometallic and organic compounds, including aldehydes, alkenes, amines, aromatics, esters, ethers, hydrocarbons, ketones, and more. Many organic and organometallic compounds are available in semi-bulk quantities from stock; some are in regular production and are available in bulk for next day shipment. We also supply most of our 20,000 organics and organometallic compounds from stock in research and development quantities. Our broad experience in manufacturing, sourcing and handling a wide range of chemical materials enables us to respond quickly and efficiently to your needs.








The following listing outlines just some of our organic chemistry expertise:

  • Boronic Acids
  • Fluorinated Intermediates
  • Iodoaromatics
  • Indoles
  • Azodicarboxylates
  • Pyridines
  • Hypervalent Iodine Reagents
  • Silylating Agents and Silanes
  • Sulfonyl Chlorides
  • Phase-Transfer Catalysts and Ionic Liquids
  • Calixarenes
  • ß-Dicarbonyls
  • Binaphythyls







Some Reactions Commonly Employed by Alfa Aesar

Our production labs employ a variety of reactions, including:

  • Acylation
  • Alkylation
  • Amidation
  • Amination
  • Arbuvoz Reaction
  • Chlorosulfonylation
  • Condensation
  • Dehydration
  • Diazonium Chemistry
  • Diels-Alder Reaction
  • Esterification
  • Friedel-Crafts Reaction
  • Grignard Chemistry
  • Halogenation
  • Heterocyclic Synthesis
  • Lithiation
  • Nitration
  • Oxidation
  • Quaternization
  • Reduction
  • Suzuki Coupling
  • Vilsmeier Reaction
  • Wadsworth-Emmons Reaction
  • Wittig Reaction
  • And more…










Custom synthesis and special packaging services are available to meet your specific requirements. All products ship with a comprehensive material safety data sheet and certificate of analysis. We recognize that prompt delivery is crucial, so we always strive to meet promised delivery dates.


Precious Metal Compounds & Catalysts

Catalysts image As part of the Johnson Matthey group of companies, Alfa Aesar 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.


High Purity Inorganics

Inorganics image Known worldwide as a leading manufacturer of high purity inorganic compounds with over 30 years of experience, Alfa Aesar produces thousands of distinct materials to exacting standards for research, development and production applications. We employ a range of production vessels from 50L through 2500L to manufacture our range of inorganics, which includes chlorides, nitrites, metal oxides, double metal oxides, sulfates, sulfides, hydrides, chromates, sulfites, and more. We also offer custom synthesis and special packaging services to meet your specific requirements. All products ship with a comprehensive material safety data sheet and certificate of analysis. Our brands are recognized for purity and quality and are backed by technical and sales teams dedicated to providing the best service.


Puratronic® inorganic compounds

The Puratronic line of base metal salts, solutions and pure elements is the leading choice of pharmaceutical and high technology companies needing the basic building blocks for many research and development processes. Each Puratronic compound has a minimum purity of 99.99% (metals basis) and each is backed by a lot-specific certificate of analysis. Our Puratronic production labs are in continuous operation and can produce batch sizes from a few grams up to hundreds of kilograms. We also have the capability to custom produce compounds of different purities and mesh sizes. Our analytical facilities in Royston, England are ISO 17025 certified.

Ultra Dry anhydrous salts

Alfa Aesar provides a comprehensive line of ultra dry, anhydrous salts, the first choice for air and moisture sensitive applications. Ultra Dry materials are manufactured under exacting conditions to ensure that impurities and water content are in the parts per million range. High purity starting materials are used in the manufacturing process, resulting in typical overall purities of 99.9% to 99.999%. Typical analysis is by GDMS, which ensures high accuracy and detail. All Ultra Dry salts are ampouled under argon, and most are available in -10 mesh bead and powder form. Ultra Dry anhydrous salts are available in multi-kilogram quantities.

REacton® Rare Earth Products

Through a combination of strong sourcing and manufacturing capabilities, Alfa Aesar has become a leading global producer of rare earth metals, alloys and compounds, including a wide range of oxides, chlorides, fluorides, nitrates, and trifluoromethanesulfonates. The REacton brand line, recognized as a benchmark for high purity rare earths, includes scandium and yttrium as well as the entire Lanthanide series of elements: neodymium, cerium, europium, ytterbium, lanthanum and gadolinium (excluding promethium). We also offer a range of specialty rare earths, such as sputtering sources, magnetostrictive rods, and custom preparations for numerous applications. Custom blends and solutions are also available. Custom synthesis and special packaging services are available to meet your specific requirements. All of our rare earths ship with a comprehensive material safety data sheet, and REacton brand products always include a certificate of analysis. We recognize that prompt delivery is crucial, so we always strive to meet promised delivery dates. Virtually all products listed are in stock for immediate delivery, many in bulk.

ACS certified chemicals

Alfa Aesar provides a complete line of American Chemical Society (ACS) certified chemicals. Each chemical is rigorously tested to meet the specifications set forth in the Tenth Edition of Reagent Chemicals. Most materials are in stock, and are available in quantities from a few kilograms to hundreds of kilograms. Alfa Aesar's line of ACS chemicals are commonly used in analytical testing, but can also be used in high purity applications. We would be pleased to discuss your packaging and shipping requirements.

Nanopowders & Dispersions

Alfa Aesar offers a wide range of nanoparticle products ranging from pure elements to oxide powders and dispersions. As an exclusive distributor of Nanophase Technologies products, Alfa Aesar stocks an extensive range of raw nanoparticles as well as nanoparticle dispersions. The Nanophase production processes produce particles with the average sizes ranging from 8-80nm from NanoArc® synthesis and from 7-60 from Physical Vapor Synthesis (PVS). Alfa Aesar also accepts requests for custom production of nanoparticle products.


Metals & Materials

Metals and Materials image The manufacture of high purity specialty metals and elements for special applications has been a major activity of Alfa Aesar for many years. We have expertise in developing products of exceptionally high purity.

As a specialty metals manufacturer, we are accustomed to providing custom fabrication and special packaging services to meet your specific requirements. All products ship with a comprehensive certificate of analysis and material safety data sheet. We recognize that prompt delivery is crucial, so we strive to always meet promised delivery dates.

Pure metals and pure elements

Pure metals and pure elements from Alfa Aesar are used in applications such as single crystal growth, fundamental materials research, photovoltaic technology, and the manufacture of sputtering targets and vacuum evaporation source materials. With the advent of advanced materials research for the microelectronics industry, Alfa Aesar introduced the Puratronic® line of base metals and Premion® precious metals. We also offer a full range of rare earth metals in various forms, including the REacton® brand line. Rare earth metals are typically packaged under inert gas such as argon or in mineral oil to prevent tarnish and corrosion.

Brazing alloys

Through its parent company Johnson Matthey, Alfa Aesar has over seventy years of experience in the brazing and soldering industry. We offer a broad range of soldering and brazing alloys to meet most applications.

Thermocouple wires

Seven types of thermocouple wires are available from stock and cut to length for a variety of applications and temperature ranges. We carry certified type S, type R, type B, type J, type K, type T, and type E wires.

Engineering ceramics

A selection of ceramic products in a variety of shapes and materials is available, including high purity alumina (Al2O3), zirconia (ZrO2) and other oxide, nitride and carbide materials.

Our ceramics provide advantages such as extreme purity, extreme resistance to corrosion, good thermal conductivity, stability in oxidizing and reducing atmospheres, ultra high vacuum resistance, stability at high temperatures, and a good resistance to thermal shock.

Materials technology: crystals, evaporation materials, and substrates

We offer a variety of materials for coating, photonic, and electronic applications, including single crystal oxides, optical materials, superconducting powders, metal crystals, coating materials and semiconductor materials.

Precious metals

Alfa Aesar offers a wide variety of high purity precious metal products (gold, iridium, osmium, palladium, platinum, rhodium, ruthenium, and silver) in a variety of forms: wires, foils, powders, and more.


Platinum Labware

Platinum Labware image We offer a full line of platinum and precious metal labware for crystal growth and analytical applications. Our high-performance precious metal labware is competitively priced and many items are in stock for immediate shipment.

Johnson Matthey has been manufacturing platinum and precious metal chemistry labware for 150 years. Alfa Aesar offers the full line of Johnson Matthey labware at competitive prices.

Platinum has properties that make it the ideal choice for many analytical applications. This metal resists the action of almost all acids and is unaffected by a wide variety of corrosive substances. It has a high melting point, a low heat capacity, and can be heated in air without any weight loss due to oxidation.

Zirconia grain stabilized (ZGS) platinum has been developed by Johnson Matthey to be resistant to grain growth, contamination and deformation at high temperatures. Through a process called dispersion strengthening, ZGS materials are produced by incorporating a fine insoluble phase dispersed uniformly throughout the platinum metal matrix.

Johnson Matthey also developed ZGS platinum 5% gold especially for non-wetting applications. It combines the workability and non-wetting properties of ordinary platinum 5% gold with the hot strength of rhodium platinum alloys, yet it is easier to fabricate and offers better stability. Its resistance to contamination makes it ideal for use in X-ray fluorescencesample preparation.

Platinum and precious metal labware available include:

  • non-wetting apparatus
  • special analysis dishes
  • evaporation dishes
  • micro chemical apparatus
  • platinum crucibles
  • utensils
  • special crucibles, beakers and combustion boats
  • platinum electrodes
  • ICP-MS ion extraction cones

To view products, please visit our Platinum Labware search.


Spectroflux® Analytical Fluxes

Spectroflux image The Spectroflux line of alkali metal borate fusion fluxes offers a variety of standard flux formulations for sample preparation in a variety of analytical applications. Alfa Aesar has a world-renowned reputation for consistently supplying the highest quality analytical fluxes to the cement and steel industries and geo-scientists for mineralogical applications.

For more than 30 years chemists have relied on Spectroflux alkali borate fusion fluxes for use in methods such as direct reading optical or X-ray emission spectrometers,atomic absorption spectrometers, spectrophotometers, polarographs, ion selective electrodes, inductively coupled plasma or classical analytical techniques. Our batch specific analysis ensures reproducibility and accuracy of your results.

Alfa Aesar offers a wide range of fluxes and supplies customized formulations to meet specific analytical requirements.