WCN WH 13mM 0.45um 100/Pk SKU: 7184-001

Cellulose Nitrate (CN) Membrane Filters - 7184-001

Engineered for high retention efficiency and superior chemical stability, the Whatman 7184-001 achieves reliable separation results across a broad range of analytical and preparative applications. Complementing this, a uniform Cellulose Nitrate (CN) matrix maintains its rated 0.45 cutoff under the pressures and flow conditions encountered during routine laboratory filtration. On this basis, from raw polymer through final inspection, the manufacturing process is designed to ensure that every membrane disc meets the performance specifications of its grade designation.

Material Specifications

• Autoclavable at 121°C without loss of integrity, cellulose nitrate membranes maintain their rated pore structure and dimensional stability through repeated sterilization cycles.
• Surface retention characteristics allow captured particles and microorganisms to remain on the membrane face, supporting direct microscopic examination and physical recovery of collected material.
• High protein binding capacity makes cellulose nitrate the preferred membrane for Western blotting, dot blotting, and nucleic acid immobilization techniques that rely on efficient surface adsorption.
• Supplied in bulk non-sterile packaging, offering an economical option for routine clarification and general laboratory filtration tasks.
• Naturally hydrophilic and compatible with aqueous solutions, cellulose nitrate delivers high flow rates and rapid wet-out without requiring pre-conditioning or surfactant treatment.

Multi-site studies where different laboratories must produce comparable data benefit from membranes manufactured to tight specifications, giving you confidence that site-to-site variability is not introduced by the filtration step. With this in mind, cellulose nitrate's dimensional stability through autoclaving at 121°C means your membranes maintain their rated pore structure and physical dimensions from pre-sterilization through final analysis, supporting method reproducibility. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.

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

Bubble Point (psi)

40.6psi

Color

white

Diameter

13mm

Extractables

low

Filtration Area

1.33cm²

Flow Rate

60ml (Water)

Grid (Yes/No)

No

Material

Cellulose Nitrate (CN)

Maximum Operating Pressure

Holder-dependent

Maximum Operating Temperature (°C)

80°C

Membrane Thickness (µm)

105–140um

Pack Count

100

pH Range

4-9

Pore Size (µm)

0.45

Sterility

Nonsterile

Sterilization

Autoclavable at 121°C for 30 mins

Support Material

None

Wettability

Hydrophilic

• Water Quality Testing - Narrow pore distribution retains indicator organisms consistently for regulatory compliance in environmental laboratories.
• Gravimetric Particulate Analysis - Dissolves in organic solvents for complete particle recovery and accurate weight-based quantification.
• Routine Sample Prep - Uniform microporous matrix provides consistent flow rates and reliable particle retention for general aqueous solutions.
• Microscopy Examination - Particles remain on the membrane surface for direct visual inspection, supporting identification and classification.
• Bioburden Monitoring - Surface retention keeps captured organisms accessible for direct incubation and enumeration without transfer steps.
• Environmental Compliance - Documented retention characteristics at standard pore ratings support reproducibility in regulated testing programs.