Whatman
Grade 2 Qualitative Filter Paper, Standard, 47mm Circle, 100/Pk SKU: 1002-047

Qualitative Filter Paper - 1002-047

From student teaching labs to production QC departments, qualitative filter paper remains the workhorse for routine particle separation. Manufactured without chemical hardening or acid washing, qualitative cellulose delivers the unmodified surface properties routine filtration requires. With this in mind, controlled manufacturing delivers the documented retention, flow rate, and physical consistency that analytical and preparative filtration methods require.

Key Filter Paper Characteristics

• Standard wet strength is sufficient for conventional Buchner funnel and gravity filtration setups at moderate sample volumes.
• Non-hardened paper balances effective particle retention with economical unit cost for high-volume routine laboratory use.
• At 97g/m² nominal basis weight, the paper provides the mass uniformity needed for reproducible gravimetric determinations.
• Rated at 8um particle retention, the fiber matrix provides a defined cutoff for consistent separation across analytical batches.
• Controlled ash level of 0.06% meets the blank value requirements of quantitative methods where filter contribution must be documented.

If your laboratory runs standardized filtration protocols, the lot-level consistency of this filter paper protects your method reproducibility. Cotton linter cellulose provides the clean fiber background your general analytical methods need without the cost of specialty grades. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.

Diameter

47mm

Flow Speed

Medium

Folded/ Fluted/ Pleated

No

Grade

2

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Ash Content (%)

0.06%

Nominal Basis Weight (g/ m²)

97g/m²

Particle Retention

8um

Pore Size (µm)

8

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

No

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.
• Botanical Extraction - Separates plant tissue debris from aqueous and solvent extracts during natural product preparation workflows.
• Enzyme Clarification - Removes particulates from enzyme solutions before activity assays in biochemistry and industrial testing.
• Polymer Filtration - Clears particulates from polymer solutions before molecular weight determination by viscometry or GPC.
• Precipitation Recovery - Collects insoluble reaction products on the paper surface for subsequent washing and downstream analysis.