Waters, WAT025851, Porasil Silica Radial-Pak Cartridge, 125 Å, 55 - 105 µm, 8 mm X 100 mm, 1/pk

Waters Porasil 15 - 20µm silica packing material provides long column life and low backpressure. The packing also has a high surface area making it ideal for preparative work. Radial-Pak columns are plastic compression cartridge segments that insert into radial compression modules (RCM- holder sold separately) for use on liquid chromatography systems.

Specifications
Chemistry: Silica
Separation Mode: Normal-Phase
Particle Substrate: Silica
pH Range Min: 2 pH
pH Range Max: 8 pH
Maximum Pressure: 6000 psi (415 Bar)
Endcapped: No
Bonding Technology: Silica
Silanol Activity: High
Particle Shape: Irregular
Particle Size: 55 - 105 µm
Pore Size: 125 Å
Format: Radial-Pak Column
Surface Area: 330
System: HPLC
USP Classification: L3
Inner Diameter: 8 mm
Length: 100 mm
UNSPSC: 41115709
Brand: Porasil
Product Type: Columns
Units per Package: 1 pk

Additional Information
Porasil Silica Radial-Pak Column, 125Å, 55 – 105 µm, 8 mm x 100 mm, 1/pk The Waters Porasil Silica Radial-Pak Column features a 20 µm silica packing material that delivers long column life, low backpressure, and optimal surface area, making it an exceptional choice for preparative-scale HPLC work. With its normal-phase separation mode and high silanol activity, this column is engineered for excellent retention and resolution of non-polar analytes. The 125 Å pore size and 330 m 2 /g surface area enhance its ability to resolve a wide range of compounds. Its irregular particle shape and broad particle size distribution (55–105 µm) further support high-capacity loading, making it an ideal choice for semi-preparative and preparative workflows. The column's robust silica substrate is chemically stable within a pH range of 2–8 and can withstand pressures up to 6000 psi (415 bar). Its non-endcapped design makes it particularly suited for applications requiring high silanol activity. The Radial-Pak format and 8 mm inner diameter ensure compatibility with most standard HPLC systems. To complement this column, consider pairing it with the LCMS Certified Clear Glass 12 x 32 mm Screw Neck Vial, with Cap and Preslit PTFE/Silicone Septum, 2 mL Volume , ideal for secure sample collection and compatibility with sensitive detection methods. Looking for other solutions to complete your lab workflow? Shop our full lab equipment catalog and stock up on columns, vials, filters, and other trusted Waters products. FAQs about Porasil Silica Radial-Pak Column, 125Å, 55 – 105 µm, 8 mm x 100 mm, 1/pk What are the key benefits of the Porasil Silica Radial-Pak Column? It provides long column life, low backpressure, and high surface area, all crucial for preparative HPLC workflows. Its large particle size and irregular shape also support high loading capacity. Is this column suitable for normal-phase chromatography? Yes, the Porasil Silica Radial-Pak Column is specifically designed for normal-phase separations and delivers strong retention of non-polar analytes due to its high silanol activity and non-endcapped silica. Can this column handle high flow rates? Absolutely. With a particle size range of 55–105 µm and a maximum pressure rating of 6000 psi (415 bar), this column supports the high flow rates needed for preparative chromatography without compromising performance.