Pura Disc 25mm PTFE Syringe Filters, 1.0um, 50 Pk
Whatman SKU: 6784-2510

Whatman Puradisc PTFE Syringe Filters, 1 µm, 25 mm, 50/Pk - 6784-2510

Whatman draws on Cytiva's broader manufacturing oversight while continuing a legacy of filtration work that touches laboratory research, environmental monitoring, and industrial processing alike. A syringe filter holds its membrane in a leak-tight housing for clarification at the bench. PTFE delivers absolute particle cutoff at the rated pore size while blocking aqueous ingress in vent applications and filters aggressive organic solvents without breakdown. The PP housing stays inert across common laboratory solvents and buffers in routine use while maintaining a low-dead-volume internal flow path and keeps sample purity intact through the filtration pass. When method reproducibility rests on consistent sample prep, syringe filtration holds that standard injection after injection.

Technical Specifications

• Hydrophobic PTFE's low surface energy, near 18.5 dynes per centimeter, extends its repellency beyond water to oils and other nonpolar liquids.
• PTFE carries a UL 94 V-0 flammability rating, the highest self-extinguishing classification for polymer materials
• PTFE retains flexibility without embrittlement down to -73°C, allowing filtration of samples taken directly from cold-chain or freeze-thaw storage.
• PTFE's low ionic and metallic extractable profile supports ultrapure water filtration ahead of semiconductor wet-bench processes requiring high resistivity water
• PTFE resists chemical attack across the full pH 1 to 14 range

Housing Specifications

• Thermal-bonded construction keeps adhesives out of the fluid path
• Impact-tolerant polypropylene body withstands routine bench handling without damage
• Resists stress cracking from aqueous salt and buffer solutions
• Inert polyolefin wall contributes minimal sample adsorption to the filtrate

Removing particulates from organic solvents and reagents before they move downstream keeps contamination out of your results. Reliable solvent prefiltration clears particulates from your organic samples before it moves on to your next process step. Request blanket-order pricing on your routine filtration purchases, and the Tisch Scientific team will also pull together the paperwork.

For more information about chemical compatibility, please review our Chemical Compatibility Chart.

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

25mm

Filtration Area

4.2cm²

Holdup Volume

<100µl

Material

Polytetrafluoroethylene (PTFE)

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

121°C

Pack Count

50

Pore Size (µm)

1

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 100ml

Wettability

Hydrophobic

• Aggressive Solvents - Clarifies chlorinated hydrocarbons and aromatics without membrane degradation, delivering pure filtrate quality consistently.
• Photoresist Filtration - Clarifies photoresist solutions in organic casting solvent ahead of spin-coating, reducing particulate defect risk.
• Cosmetics Testing - Clarifies lotions and emulsions after alcohol pre-wetting, keeping products free of particulate contaminants.
• Dissolution Testing - Stops the dissolution reaction and clarifies samples, with low API binding for accurate potency quantitation.
• Extractables Testing - Clarifies packaging material organic solvent extracts ahead of LC-MS analysis, keeping background low for leachable detection.
• UV Spectroscopy - Clarifies solvent-based samples before UV/Vis analysis, removing scattering particulates for precise, reliable absorbance readings.