Description

Catalogue No.	Nominal capacity ml	Pack of
11011/1	100	2
11011/2	250	2
11011/3	500	2
11011/4	1000	2
11011/5	2000	1

The MEDILAB Flask, Filtration, Buchner is a heavy-duty laboratory filtration flask designed for efficient vacuum filtration of liquids, suspensions, and particulate samples. Made from high-quality Borosilicate Glass 3.3, it offers excellent chemical resistance, thermal stability, and mechanical durability. This vacuum-rated flask is essential in laboratories where precise, fast, and safe filtration is required, making it a critical tool for routine analysis and industrial processing. Its robust construction ensures reliable performance in demanding research, quality control, and production environments.

Key Features

• Vacuum-Rated Design: Thick-walled construction ensures safe and stable operation under vacuum.
• High Chemical Resistance: Withstands aggressive acids, alkalis, and organic solvents.
• Superior Thermal Strength: Made from Borosilicate Glass 3.3 for high heat resistance and minimal thermal expansion.
• Wide Range of Capacities: Suitable for small- to high-volume filtration tasks.
• Heavy-Duty Side Arm: The precisely engineered tapered side tube ensures secure attachment to vacuum hoses.
• Clear Graduations: Easy-to-read markings for quick sample volume estimation.
• Universal Compatibility: Works seamlessly with Büchner funnels, filter papers, and vacuum pumps.
• Durable & Long-Lasting: Resistant to mechanical shock and repeated heating/cleaning cycles.

Material Specifications

• Material: Borosilicate Glass 3.3
• Thermal Properties: High thermal shock resistance Low coefficient of thermal expansion (approx. 3.3 × 10⁻⁶ /°C)
• Chemical Properties: Excellent resistance to most chemicals, except hydrofluoric acid & strong alkalis at high temperatures
• Mechanical Strength: Heavy-wall construction supports vacuum applications
• Compliance Standards: Manufactured as per ASTM / ISO / DIN standards for laboratory glassware

Technical Specifications

Available Capacities: As per the standard size table

Design Features:

• Conical flask with heavy side-arm tube
• Thick wall for vacuum safety
• Clear white graduations (ml)
• Flat, stable base

Typical Dimensions (approx., may vary by capacity):

• 250 ml: Neck OD ~34 mm, Height ~150 mm
• 500 ml: Neck OD ~34 mm, Height ~180 mm
• 1000 ml: Neck OD ~42 mm, Height ~220 mm
  (Detailed dimension tables can be included on request.)

Accessories (optional):

• Büchner funnels (porcelain/glass)
• Rubber cone adapters
• Vacuum hose

Handling & Precautions

• Safe Use: Ensure connections are secure before applying vacuum pressure.
• Cleaning: Wash with mild laboratory detergents; avoid abrasive scrubs to protect clarity.
• Autoclaving: Fully autoclavable at standard laboratory sterilisation temperatures.
• Heating Limits: Suitable for heating on a hot plate or in an oven; avoid direct flame contact.
• Dos: Inspect the flask regularly for cracks or chips. Support the flask properly during filtration to avoid tipping.
• Don’ts: Do not expose the flask to sudden temperature changes. Do not use if the sidearm or body has micro-cracks.

Applications

• Pharmaceutical Labs: Filtration of chemical intermediates, culture media, and APIs.
• Chemical & Industrial Labs: Clarification, crystallisation, and purification processes.
• Biotechnology & Microbiology: Removal of particulates, cell debris, and microbial cultures.
• Research & Academic Institutions: General laboratory filtration and sample preparation.
• QC/QA Laboratories: Routine analysis, solid–liquid separation, and validation processes.
• Environmental Testing Labs: Water, effluent, and soil sample filtration.

The filtration flask plays a crucial role in speeding up workflows, improving accuracy, and ensuring contamination-free sample handling.