Grade 111 Cellulose Fast Qualitative Filter Paper

Grade 111 Cellulose Fast Qualitative Filter Paper

Application: Designed for rapid filtration of precipitates and coarse particles in laboratory applications, ideal for educational, industrial, and research settings requiring fast flow rates.

Product Details:

• Material: Pure cellulose fiber

• Grade: 111 (Medium-fast filtration)

• Pore Size: 11 μm nominal

• Dimensions: 12.5 cm diameter (fits standard funnels)

• Packaging: 100 sheets per box

Key Features:

• High Flow Rate:

  • 2x faster than standard grades

  • Ideal for gelatinous precipitates

• Retention Capacity:

  • Effective for particles >15 μm

  • 85-90% retention efficiency

• Chemical Compatibility:

  • Resists weak acids/alkalis

  • Not for use with strong oxidizers

• Physical Properties:

  • Basis weight: 90 g/m²

  • Ash content: <0.01%

Performance Specifications:

• Filtration speed: ~50 sec/100mL water (gravity filtration)

• Wet burst strength: ≥14 kPa

Usage Notes:

• Pre-wet with solvent for optimal flow

• Not for quantitative analysis

• Store in dry conditions