Filter Paper Qualitative No.131
Filter Paper Qualitative No.131: High retention efficiency for fine crystalline precipitates such as barium sulphate; characterised by a slow flow rate, a smooth surface, and normal hardness. Qualitative Filter Papers: Premium qualitative filter paper crafted from 100% cotton linter cellulose. Exhibits exceptional pH tolerance (0-12) and thermal stability (up to...
Filter Paper Qualitative No.131:
High retention efficiency for fine crystalline precipitates such as barium sulphate; characterised by a slow flow rate, a smooth surface, and normal hardness.
Qualitative Filter Papers:
Premium qualitative filter paper crafted from 100% cotton linter cellulose. Exhibits exceptional pH tolerance (0-12) and thermal stability (up to 120°C) with minimal ash content (0.1%). Ideal for precise precipitate removal and clarification procedures in laboratory settings. Specifically designed for preparation stages in qualitative analytical workflows.
| Weight (g/m) | 140 |
| Thickness (mm) | 0.25 |
| Flow Time (sec) | 240 |
| Absorption speed (cm) | 6.0 |
| Wet Strength (kPa) | 8 |
| Nominal Rating (um) | 3 (medium-fine) |
| Collection Efficiency (%, 0.3um DOP) | 90 |
Note:
- Filter paper Qualitative No.131 is characterized by three key performance metrics: flow time (seconds needed for 100 mL distilled water at 20°C to filter through a 10 cm² section under 10cm water column pressure), absorption speed (distance water travels up a vertical strip in 10 minutes at 20°C), and wet strength (pressure resistance measured via Mullen Burst Strength Tester after water immersion).
| Size |
55MM, 70MM, 90MM, 110MM, 125MM, 150MM, 240MM |
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