Funnel Buchner

Buchner Funnel, with sintered disc, porosity G-0 or G-1 or G-2 or G-3 or G-4

Description

Catalog No. Capacity ml Disc Dia. mm
11016/1 35 30
11016/2 80 40
11016/3 100 50
11016/4 200 65
11016/5 500 90
11016/6 1000 120

The MEDILAB Buchner Funnel is a precision-engineered laboratory filtration tool designed for rapid separation of solids and liquids using vacuum-assisted filtration. Manufactured from high-clarity Borosilicate Glass 3.3, it ensures superior chemical resistance and thermal stability during routine and heavy-duty applications. This funnel is essential in chemical analysis, sample purification, crystallization processes, and quality control operations, delivering consistent performance and reliable filtration results.

Key Features

  • High-performance vacuum filtration design for efficient solid–liquid separation.
  • Made from Borosilicate Glass 3.3, offering exceptional thermal shock resistance.
  • Heavy-wall construction for long-term durability and stability under vacuum.
  • Uniform perforated plate ensures a smooth flow rate and consistent filtration efficiency.
  • Excellent chemical compatibility suitable for acids, bases, solvents, and organic reagents.
  • Reusable and easy to clean, making it ideal for frequent laboratory operations.
  • Clear glass visibility allows real-time observation during filtration.
  • Available in multiple sizes, meeting diverse laboratory and industrial filtration needs.

Material Specifications

  • Material: Borosilicate Glass 3.3
  • Properties: High resistance to thermal shock (low coefficient of expansion 3.3 × 10⁻⁶/K). Exceptional chemical durability, resistant to most acids, alkalis & solvents. Smooth, non-porous surface prevents contamination and ensures easy cleaning. Mechanically strong and stable for vacuum filtration setups
  • Standards: Compatible with standard laboratory vacuum filtration assemblies

Technical Specifications

  • Available Sizes: As per the standard size table
  • Design & Dimensions: Cylindrical body with perforated plate. Thick wall design suitable for vacuum filtration. Precision-formed rim for secure sealing with filter paper
  • Tolerance/Accuracy: Dimensional accuracy as per international laboratory glassware standards
  • Accessories (Optional): Filter papers in corresponding diameters Vacuum adapters and rubber cones Filtration flask / Buchner flask

Handling & Precautions

  • Always inspect the funnel for cracks or scratches before applying the vacuum.
  • Use compatible filter paper sizes to ensure proper sealing and filtration efficiency.
  • Do not subject the funnel to sudden temperature changes; allow gradual heating and cooling.
  • Suitable for autoclaving at 121°C; avoid overheating beyond recommended limits.
  • Clean using mild laboratory detergents; avoid abrasive scrubbers.
  • Ensure proper support when connected to a vacuum line to prevent tipping or breakage.
  • Do not use with highly alkaline solutions at temperatures above 80°C.

Applications

The MEDILAB Buchner Funnel is widely used across scientific and industrial sectors for:

  • Vacuum filtration of precipitates, crystals, reaction mixtures, and suspensions
  • Sample preparation in chemical labs, universities, R&D centers, and analytical labs
  • Pharmaceutical QC/QA workflows for purification and separation processes
  • Biotechnology & microbiology applications for media filtration
  • Environmental testing for residue analysis and particulate separation
  • Routine filtration in food, beverage, and material testing laboratories

It plays a crucial role in maintaining accuracy, clarity, and reproducibility of analytical results in daily lab operations.