NC45 0.45um 100mm 50/Pk SKU: 10401121

Cellulose Nitrate (CN) Membrane Filters - 10401121

Engineered for high retention efficiency and superior chemical stability, the Whatman 10401121 achieves reliable separation results across a broad range of analytical and preparative applications. Quality-controlled manufacturing ensures the filtration medium delivers the retention efficiency and throughput that demanding laboratory protocols require. In practice, precision manufacturing ensures that each membrane disc delivers the rated retention, flow rate, and surface consistency that analytical and microbiological methods require.

Material Specifications

• Supplied in bulk non-sterile packaging, offering an economical option for routine clarification and general laboratory filtration tasks.
• Autoclavable at 121°C without loss of integrity, cellulose nitrate membranes maintain their rated pore structure and dimensional stability through repeated sterilization cycles.
• Naturally hydrophilic and compatible with aqueous solutions, cellulose nitrate delivers high flow rates and rapid wet-out without requiring pre-conditioning or surfactant treatment.
• Cellulose nitrate membranes feature a narrow pore size distribution and low extractable levels, providing the controlled retention characteristics required for gravimetric and particulate analysis.
• Dissolves completely in specific organic solvents, enabling full recovery of captured particles from the membrane surface for downstream gravimetric, chemical, or spectroscopic analysis.

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. Here, surface retention on cellulose nitrate keeps captured particles and microorganisms on the membrane face where they remain accessible for direct microscopic examination, colony counting, and physical recovery without sectioning or dissolution. 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

100mm

Extractables

low

Filtration Area

78.54cm²

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

50

pH Range

4-8

Pore Size (µm)

0.45

Sterility

Nonsterile

Sterilization

Autoclavable at 121°C for 30 mins

Support Material

None

Wettability

Hydrophilic

• Microscopy Examination - Particles remain on the membrane surface for direct visual inspection, supporting identification and classification.
• Gravimetric Particulate Analysis - Dissolves in organic solvents for complete particle recovery and accurate weight-based quantification.
• Aerosol Analysis - Low tare weight and acid digestibility enable chemical characterization of airborne particulates from air sampling.
• Colony Enumeration - Gridded surface variants facilitate accurate plate counting of captured microorganisms under standard magnification.
• Bioburden Monitoring - Surface retention keeps captured organisms accessible for direct incubation and enumeration without transfer steps.
• Routine Sample Prep - Uniform microporous matrix provides consistent flow rates and reliable particle retention for general aqueous solutions.