Hydrophilic PTFE Membrane Filters Lab Disc Filter 25/50/100 pcs/pk
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$21.00 USD
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Cobetter hydrophilic PTFE membrane is a universal membrane which is ideal for both aqueous and solvent filtration. It has excellent chemical compatibility. For Hydrophilic PTFE membranes, methanol pre-wet is not required when filtering aqueous solutions.
Specifications
| Materials | Membrane | PTFE |
| Wettability | Hydrophilic | |
| Color | White | |
| Physical Properties | Filter Diameter | 13/25/47/50/60/90/100/110/150 mm |
| Pore Size | 0.1/0.22/0.45 μm | |
| Maximum Operating Temp. | 140°C | |
| pH Range | 1.0 – 14.0 | |
| Sterility | Delivery Condition | Nonsterile |
| Package | Pack Size | 100/pk, 50/pk, 25/pk |
Performance
| Pore Size | Bubble Point (Water 20°C) | Water Flow Rate (s/50ml/12.68cm²) @-30KPa (water 20°C) | Thickness (μm) |
| 0.1 μm | ≥300KPa | ≤120s | 200±60 |
| 0.22 μm | ≥300KPa | ≤55s | 210±70 |
| 0.45 μm | ≥180KPa | ≤30s | 210±70 |
Features
- Hydrophilic
- Broad chemical compatibility
- Strong chemical compatibility with pH range of 1-14
- Very low extractables
- A universal membrane ideal for both aqueous and solvent filtration
Applications
- Compatible with most HPLC solutions, filtration of aqueous and organic solutions
- Particularly suitable for filtration of water-miscible organic solvents and disinfectant filtration
How to Choose a Membrane Filter
Medium, buffer filtration ---------- PES membrane
Low protein adsorption filtration --- PVDF membrane
Solvent mixture ------------------ Nylon or Hydrophilic PTFE membrane
Non-polar (hydrophobic) solution -- Hydrophobic PTFE membrane
Polar (hydrophilic) solution -------- Nylon membrane
Corrosive solution ---------------- Hydrophobic PTFE membrane
Gas filtration --------------------- Hydrophobic PTFE membrane