Qualitative Filter Paper - 5201-935
Teaching laboratories introducing filtration techniques need a paper grade that produces reliable results while remaining cost-effective for student use. Manufactured without chemical hardening or acid washing, qualitative cellulose delivers the unmodified surface properties routine filtration requires. Lot-level verification of retention, thickness, and ash content ensures predictable performance when scaling from method development to routine analysis.
Key Filter Paper Characteristics
- Non-hardened paper balances effective particle retention with economical unit cost for high-volume routine laboratory use.
- Nominal retention of Medium Fine provides the particle size cutoff appropriate for the analytical or preparative separation method.
- Basis weight of 75g/m² indicates the fiber mass per unit area that controls retention, flow rate, and wet strength.
- Uniform fiber distribution across the sheet ensures consistent particle retention from edge to center for reproducible filtration results.
- Wet strength sufficient for gentle handling during precipitate transfer while maintaining the rapid flow rates of qualitative grades.
When your multi-site study requires comparable data across laboratories, papers manufactured to tight documented specifications ensure your results align. In response, broad grade availability lets you match retention, flow rate, and thickness to each specific application in your method library. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.
- Dimensions
- 58 x 58cm
- Flow Speed
- Slow
- Folded/ Fluted/ Pleated
- No
- Grade
- 201
- Hardened (Yes/ No)
- No
- Material
- Cellulose Fiber
- Nominal Basis Weight (g/ m²)
- 75g/m²
- Particle Retention
- Medium Fine
- Pore Size (µm)
- 7.0-14.0
- Qualitative/ Quantitative
- Qualitative
- Sterility
- Nonsterile
- Wet Strengthened (Yes/ No)
- Yes
- Wettability
- Hydrophilic
- Teaching Laboratory - Provides consistent and economical filtration media for student exercises in analytical and general chemistry.
- General Clarification - Removes suspended solids from aqueous solutions by gravity filtration for routine sample preparation.
- Lysate Clarification - Separates cellular debris from crude lysates before downstream chromatographic or electrophoretic analysis.
- Paint and Coatings QC - Removes gels and undispersed pigment from coating samples prior to color measurement and viscosity testing.
- Polymer Filtration - Clears particulates from polymer solutions before molecular weight determination by viscometry or GPC.
- Beverage Testing - Filters wine, beer, and juice samples before clarity and color measurements in food quality control laboratories.