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Our Brands

Premion® | Puratronic® | REacton® | UltraDry® | Specpure® | Spectroflux® | Vacpure™ | Chemseal™ 

Premion logo

Premion is Alfa Aesar’s trademarked name for high purity precious metal compounds and pure elements. The minimum purity for Premion pure elements is 99.99% (metals basis). Premion pure elements include the following metals: Platinum (Pt), Palladium (Pd), Rhodium (Rh), Iridium (Ir), Ruthenium (Ru), Osmium (Os), Silver (Ag), and Gold (Au). The minimum purity for Premion compounds is 99.95% (metals basis). They include the compounds of the elements listed above.


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Puratronic logo

Puratronic high purity base metals and salts are the leading choice of pharmaceutical and electronic companies as the basic building blocks for many research and development processes. Alfa Aesar ensures the quality and purity of each Puratronic product during manufacturing. Each Puratronic compound has a minimum purity of 99.99% (many exceed 99.999%).


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REacton logo

Alfa Aesar's high purity rare earth metals, alloys and compounds constitute the REacton product line. Recognized as a benchmark for high purity rare earths, the REacton brand line encompasses the entire Lanthanide series (excluding promethium) along with scandium and yttrium. REacton rare earths feature extremely low impurity levels.Under the REacton name, Alfa Aesar offers a broad range of high purity rare earth materials, including Oxides, Halides, Carbonates, Nitrates, Acetates and more.


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UltraDry logo

Alfa Aesar provides a comprehensive line of ultra dry materials, the first choice for air and moisture sensitive applications. Ultra dry compounds are manufactured under exacting conditions to ensure that oxygen and water impurities are in the parts per million range. Only high purity starting materials are used in the manufacturing process, which produces results in overall purities of 99.9% to 99.999%. All ultra dry salts are ampouled under argon, and most are available in -10 mesh beads and powder form.


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Specpure logo

Specpure is the trade name for Alfa Aesar’s analytical standard solutions. Specpure standards are produced using the highest quality raw materials and ASTM Type 1 deionized water for the greatest calibration accuracy possible. All Specpure standards are shipped with a batch-specific Certificate of Analysis. Specpure atomic absorption standard solution concentrations are accurate to ±1.0% and plasma solutions to ±0.3%.


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Spectroflux logo

Spectroflux is Alfa Aesar’s brand of lithium borate based fluxes prepared for daily use in a variety of analytical methods. A range of fluxes is available for use is methods such as X-ray emission spectrometers, atomic absorption spectrometers, spectrophotometers, polarographs, ion selective electrodes, ICP or classical analytical techniques. Regardless of the method chosen, Spectroflux analytical fluxes offer the benefits of speed and analytical precision.


Vacpure logo
Evaporation processes and other exacting applications require ultra purity. The Vacpure system is a specially engineered sealing/packaging process for a range of high purity metals. The Vacpure system ensures that oxygen, moisture and other impurities are extracted from the packaging before sealing, maintaining the purity of the enclosed material.


ChemSeal logo

A range of air, oxygen and moisture sensitive products is offered in ChemSeal packaging. The ChemSeal system employs a resealable septum through which a volumetric quantity of the reagent can be withdrawn without exposure to oxygen or moisture.


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Life Science

Metals & Materials


Analytical & Labware